canders i feel your post here so much. im in awe you had the strength to bring it up. big kudos to you for that one!
for me it was only once too and i feel exactly as you do. its nothing. it should just be forgotten. im stupid and sick. all i can say to you is that now you ve managed to get this out and you re working through the intense pain of that these feelings will go away! they will dissipate with time and energy and you will be, if not able to forget, to leave behind.
let your T help you with this. you are so strong and i have such admiration for you. i understand your vulnerability now though so please try to trust your T will be there for you. as are we all here.