-i am 30 years old. dating a guy who is 22 and in college. been with him for two years now. he's amazing. treats me very well. talking marriage
-his friend is always flirting with me
-one day at a party by bf was hammered drunk. i had to drive him home and basically tuck him into bed. his friend came with me and helped me put him to bed
-then i took the friend home. and he came onto me. neither of us were drunk. two beers each, tops.
-i resisted at first. but then i caved. and we ended up having s-x. but it was a one time thing.
-now i don't know if i should admit it or not.
It is always better to tell a hard truth than an easy lie. Lying by omission is still a lie. If you don't tell him remember that eventually either the guilt will consume you if you have a good conscience or he will find out and you'll need to come clean. At least if you admit what you did there can still be some trust to build back up to. If he finds out any other way than from you coming clean he has no reason to ever trust you again.