There are so many threads trying to quantify or compare which "type of pain" is worse, or which type of A is worse.
First of all, the pain of betrayal is felt by the betrayed so I guess if you really want to make it up to the BS, one of the first steps would be to process the pain you have caused her, not try to determine for the both of you, how bad your actions were, or were not.
When it comes to even trying to discuss "how bad" an EA is, well in my book, some are worse than others. My H told the OW "ILY" and I know they discussed plans ot run off together, but he never had sex with her. For me that is the "worst" but it would be worse still, if he had sex with her too.
We started out as Just Friends (there was no initial attraction for me) and discussed things we shouldn't have (marriages).
That was already an EA.
I disagree with this view, and I especially disagree with it if something like this is going to be used to say that "An EA is just as bad as a PA" I have told my sisters and some female friends, and possibly even some males in the past, things about my M that I wish I didn't, but I don't think that meant I was having an EA with any of them.
I think it is wrong and a bad idea to discuss your marriage or problems in M with somebody of the opposite sex whom you COULD have some potential to someday be attracted to, but being wrong about something is not equivalent to identifying something an affair. Just my opinion.
Second of all, speaking of only my own thoughts and experience as a BS, I believe the absolute worst As are the ones that are EA and PA, and in reality, most As are that including at least the third one that you described.
And, two As (of any kind) are worse than one. And three are worse than 2.
So, given you have had three A's and at least one of them was the absolute worst kind possible (remember all from my view; I'm not trying to suggest anything about how any other BS might feel) I believe it highly unlikely I would give someone who did all that another chance. If you want to R with your BS then I think you should be feeling pretty fortunate if your BS even wants to consider it.