I feel you should give some thought to what you stated " I really did wanna be in a serious relationship ".

Topic: Is it wrong to have casual one night stands when single?

Only your God & you choice can tell you that.

BUT why confess? I don't understand why you would refer to it as confess ? Was he a priest ?

You didn't cheat on the guy. The past is the pass & no one's busisness. And it won't make a guy tell you everything.
Even if you did happen to cheat.
Telling a guy about it might unburden you, but it will do more harm than good to the relationship.
( And men are more likely to leave than women are, for that).

But whoever he is, you are better off with out him. Leave him & his virgin fantasies or ' good girl/ bad girl ' mindset to self destruct on someone or somewhere.. far away from you.

Consider it.. A near miss

WHY should she 'give some thought to what she stated,'I really did wanna be in a serious relationship'??????
She's a single lady, living a single life,.. has been chatting with a fellow,; decides to meet him, and she blurts out that she's had sex with others... and HE gets pi$$ed off? If he wasn't such an idiot, he could have been her next one..and maybe last one, as it could have led to a serious relationship..
seriously, some people... are we all to be celibate .. until when?

It is that damn virgin fantasy & good girl/ bad girl crap. Like it is 1950 ...!

OP..when most men say, they want a modern woman or independent woman. They mean, to have wild monkey sex with them & only them & to have a job so they don't have to take care of you.

.OP.. Can you lie ?
I was a virgin twice.

.OP. Or at least keep your confessions to someone that can NOT testify against you.
A shrink, a priest ( Catholic or not..does not matter) .

People say they want the truth..

"You Can't Handle the Truth": http://youtu.be/5j2F4VcBmeo/

To be clear, what I was thinking was relax. Do not think you have to rush into a "serious" relationship. It may just be a little fast or to soon.