Embarrassed

My recommendation is to not do it again if it’s not something you want to do and the one time mess you up. It sounds like you have much inner conflict (because unless he forced himself on you, you did want to do it) that may require a qualified therapist.

When I first started giving oral to other men I always felt guilty afterwards and swore I would never do it again but that was over 30 years ago and after a dozen times or so I no longer felt guilty and started to embrace sucking guys off then started letting guys fuck me and now I am a total bottom bitch for men and love sucking cock and guys cumming in my ass

I don't know exactly what you mean by "damaged in your mind"
I know some people just can't deal with some things. I'd like to say Just think about how much pleasure you brought him. How much he enjoyed it. Despite what this other commenter says, Bringing someone pleasure is a good thing. Hurting someone, like this persons comments are trying to do, is whats bad. Sex is a natural normal thing. Not something to be ashamed of. If you're feeling guilty because your married, (and I don't know if you are)Then tell him and ASK HIS FORGIVENESS.