I have more questions about my own relationship to ask later but this particular one I've been looking for advice on for a while in concern to my writing, but fundamentally I think this is probably a personal question too so that's what I'm asking here. (Alternate version is currently my bio for later reference)
My experience and perspective on things is not remotely normal, I've tried to ask several writing forums about this but the topic made them uncomfortable, and I really hope its okay to ask here. (Also since this one references my writing at the end I wasn't sure to put it here or in off topic)
....
The List of Things:
• I'm ADHD/Mildly show stronger Autism symptoms (I don't think this factors nowadays but it did cause the original delay in me learning how to date/the expectations)
• I'm a sex positive Demisexual with a high libido, and possibly Demiromantic too but we haven't been able to confirm that. (Translated, the above means I personally struggle to feel sexual attraction towards individuals until 'a bond has formed' which to my perspective is becoming randomly and extremely horny months or years later. It can be annoying, especially since I have a high libido to begin with and nothing to direct it at. I've found some outlets gradually that are able to work on me, but it was not a 'just google something' solution I've heard people suggest before. It took more than two years of training and conditioning myself for the 'pictures' or 'video' methods to even start to give something.)
• I have Quasiplatonic tendencies. As mentioned with the above, it can be difficult to find and 'aim' a target for 'desires', which results in functionally finding outlets for erotic activity and emotional attachment with my friends etc in non physical and codependent ways. (aka *THIS WILL BE IN A RELATIONSHIP POST LATER* I'm not only here to interview people or anything like that)
• I was essentially a Incel/Stalker Ex Boyfriend but now 7 years reformed (used bio gender for account if that factors in). Behaviorally/mental health wise, I'm past everything but seeing the worst in others was how I lived for a period of about 9 years. (I've done an ask about anonymous about confessing this knowledge/experience to my to-be-someday in-laws, and got a decisive 'hell no' and some choice insults, which now has be a bit worried about acknowledging that it happened the way I used to bring it up in interactions/getting to know people. I stressed the years but the answers trended towards being an 'if ever than forever'/'reacting like its recent' just from the terms Incel & Stalker in the question.) ['Stalker' behavior only happening in the very first quasiplatonic attachment situations, debatably at 3 different people but at least two, and that was enough for me to notice I was growing possessive/obsessive over people like it was a relationship when it wasn't.]
• My main experiences of dating has been a (mostly?) mutual separation in which they found someone more local and to their tastes while we were still in an active relationship. I have no idea if this weird pattern of being dumped after they kissed/slept with someone else already and that still being a conversation is normal. All I know for sure is it did hurt and they didn't feel very emotionally invested in me in some cases or just found something better in other years long relationships. Some I'm still in contact with while some drifted, but at the initial break up we remained friends for a period afterwards. As mentioned I have no idea if this level of direct communication is normal or if it counted as cheating to be dumped after the act occurred. A lot of people who did agree to be girlfriend/boyfriend to me are poly, which I don't mind, but 'dumped after replacement is found' was the standard in all that counted as more long term and I thought serious.
....
Rambles out of the way, the kind of relationship I have in the series I've been working on through all of that is one about (typical?) marital cheating in which one or both partners in marriage get emotionally invested/have sex with someone or someones outside the marriage.
Originally this plot point was a mythology reference, but the longing/unrequited/tragic aspect was original to the work from the above life experience. Now though I keep questioning and fixating on it, trying to figure out why its such a strong theme that I don't let go of even though I have some difficult in making it how I want the story to be. Likewise the fact the story still counts as 'Romance' (+Tragedy/Thriller) has a lot of people both interested and iffy with it. I don't try to make it positive in anyway, but the Protag is the person who falls for manipulation and chases after a married woman; even if years later she realizes that what she did (nearly getting herself killed and later leaving him to die in a fire she caused) was undeniably cruel especially because he still believed the lies, mourned her, and blamed himself even after everything she knowingly did. This being the reconciliation aspect, although 'getting back together fully' is still a plot point I've been debating; they're 'together' enough to be interacting with each other but they live separately and in no way coparent the kids that were directly hurt by said affair. He is the only one parenting and making excuses for her/trying to convince the kids she was a good person 'while she was alive'. (Her having a crisis in the background not knowing how to parent or really care but being guilted.)
And for the question of 'which character most like you' etc; "The Idiot", (Protag), the guy who is the affair partner and fell for the manipulation/latched onto her in the first place, is the closest thing I have to a self insert (as I don't do them).
So, yeah :/
"Do I even know what Cheating is?"