i completely understand how you are feeling. I have the exact same feelings. exact. it is devastating in multiple ways. And you are NOT NOT NOT silly for caring so much. It is a very real and valid feeling...a feeling that i think most BS's feel. you are not alone.
i had these horrible mind movies. I had this idea in my head of what it was like between them. I imagined this grandiose amazing thing filled with love, passion, intimacy and cosmic connections. It drove me insane. How dare he connect with someone on that level?
Until i started to deconstruct it.....
I started off by asking my WH what some of the things were that he NEVER did with her. Examples included taking a bath with her, they never gave eachother massages, etc. He never brought her flowers or gifts. When i looked at all the small, loving things that he did for me but not for her, it started to put things onto perspective.
THEN....For months, i avoided getting the sexual details from my WH. I mean...its an affair...i get how it works. I didnt need the graphic play by play. And once it has been heard, you cant unhear. BUT i started asking specific questions about things that bothered me that i just felt i HAD to know. Understanding what their encounters were like helped. Most of the time they met for quickies in her van
And the very disgusting and gross Motel 6
Thats not the epic passionate image i had in my mind. Its pathetic. and lame. and repulsive. and degrading. and shameful.
Thats NOTHING like the love life i shared with my WH at all. I'm guessing that if you were to deconstruct your WH's affair, you will see that it was nothing like what the 2 of you shared.
Yes, our WH's had sex with another woman. Yes, they gave away what was supposed to be for JUST US, no one else. They took what was supposed to be special and treated it like it was cheap and meaningless. It hurts. it sucks. They destroyed the intimacy and the connection that our marriages were built on. that is a huge betrayal and takes a long time to build back.
But maybe if you can deconstruct it for yourself, it might help. it might put things into a better perspective for you. and as tushnurse says...you will see the difference between sex and making love.
I still struggle with my feeling about it, as i am sure you will for many days to come.
know you arent along. hugs to you.