How do I get past my crush kissing my friend and the idea that she knows what his lips feel like?

[Exella]

This guy I like kissed (multiple times at the club) a great friend of mine because he was super drunk, desperate, and was trying to make me jealous (this great friend in particular has been into him for a while and he knows it. I like him as well and I know it's mutual but I feel bad for her so I ignore him, although we've kissed one night, I felt bad immediately and stopped everything).

Anyways, the point isn't is he an idiot or what should I do or how should I feel, or about my friend's feelings etc., but more about, if I end up pursuing something with him one day, will I ever get past knowing he's kissed her, knowing she knows how his lips feel, and he knows how hers do? I'm not scared of her, just possessive and jealous that she also got a taste of my 'special' thing I had with him.

How do I stop feeling this way? And don't let this dumb kiss ruin anything if a relationship happens between us at some point?

Also, as a guy, what is going on in your head after that? If you were him, after this happened, dating me, and seeing said friend, would you think about the kiss often? Would you think about it while kissing me? I know I'm being paranoid or whatever but I don't know what goes on in guy's heads.

Updates

+1 y

By 'special' thing I mean that she got to have a cute moment of her own when I thought cute moments like that were our thing between me and him.

[SnowedIn]

You have way too many questions going on in your question.

First, he was drunk. Ignore everything that happened.

Then, you need to answer one question and one question only: do you like the guy and want a relationship with the guy? If the answer is no, then none of the rest of your questions matter. Move on. If the answer is yes, none of the rest of your questions matter: talk to him and start a relationship. Don't be mean to your friend or do anything underhanded.

All of the rest of the stuff is ancillary. Doesn't matter. Just answer the one question and move forward from there.

[Anonymous]

This dude clearly doesn't give the first shit about having any type of "thing" with you at all. Being drunk means nothing, you can still choose to be loyal when you're drunk.
I love women like you, they're so easy to manipulate and play right into the ground. Fucking dumb, hopeful bitches who like a guy so much that she'll put up with damn near anything for even the chance of being his "one and only" 🤪
Stupid. I bet your friend loved his tongue all over the inside of her mouth and so did he

[FilmGuy93]

How the fuck are you still attracted to the man after he was desperate and immature enough to kiss your friend to make your jealous?

Y'all shouldn't be having sex...

[Mayo503]

You just got to leave it all behind you I say
But if your thinking that way about what if…
It’s still on your mind….
So give him a call and finish it off and then see

[TheFlak38]

A very small violin plays.

[Cheerfull009]

Beware, he is taste changer, not sincere