22-year-olds are still children. The youngest woman I've met who realized excitement and "danger" was fun for a fling, but left absolutely nothing for an actual relationship...and then actually stopped dating these types, was 27.
Right now I'm friends with a young woman (24 or 25 I think) at work who just got herself conned into dating one of these kinda guys: Extrovert, cocky, smarmy.
Right now we're placing bets behind their backs on the day he beds her and the day he breaks-up with her. So far I'm $20 in the lead with -Last Night- (they started seeing each other "secretly" three days before), and my bet for the break-off is January 15th.
Your friends will place bets, too. This is while the laugh at you behind your back. And the guys? Half of the ones who know you or know of you won't bother to be interested in you after this (you'll be seen as either an incredibly stupid girl or someone who has several types of STD's), about 1/4 to 1/3 of the boys will go after you because this "great, misunderstood guy" will brag about his conquest (you) and will proclaim you to be an easy lay. The rest won't care. But at least 3/4 of all the boys (again, those who know you or of you) will see you as a slut.
And the girls? Well, you know how girls will be.