<p>My D is 18-HS senior and BF goes to a small LAC 20 minutes away-they are still going strong-she attends parties at his school most weekends and he has invited her to his fraternity formal-she has pretty much skipped her senior year in HS-they have dated for 2 years and do most things together - she hangs out with the college girls more then her HS age girls--actually doesn't have many friends since she's had the BF for 2 years-she plans to attend there-I've worried about this but I've decided that this is her decision and if a break up happens -she will have to deal with it. It is a VERY good school so she will be getting a great education.</p>
<p>There isn’t much you can do, even if doing something were the right way to handle it.
At 18, she is as old as many college students, so it’s not like she’s with an inappropriate peer group- it just doesn’t happen to be the one at her own school. She’s missing out on some experiences, but gaining others. She’ll have a pretty easy transition to college next year, at least.
And who knows, they might make it. I hope you like him. 
My son and his girlfriend started dating in senior year in high school and they are now college graduates and still together. In fact, they work in the same building, for different government services. You really never know. The have a ton of common friends, though, and make independent ones as well. It sounds like your daughter may find the high school girls are just in a “different place” than she is right now, so she finds the college girls more compatible. As long as she does have friends in one school or the other, I wouldn’t worry too much.</p>
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<p>Exactly. As long as her relationship with this guy is encouraging her to make other friendships instead of drawing her away from anyone but him, I wouldn’t worry too much.</p>
<p>I married my HS sweetheart and we are still married and still happy. (though we went to different colleges)</p>
<p>D’s boyfriend from high school transfered after their freshman year to be in school with her. At first I was worried, but she’s continued to be so busy, I have no idea when she even sees him. They seem happy, though who knows if it will “last.” </p>
<p>Carpe Diem.</p>