Okay, "The Last American Virgin" DEEPLY Messed Me Up - Anyone Else?

Okay, I just finished watching "The Last American Virgin" (I needed something totally 80s, don't judge!) and I'm...I'm honestly kinda shaken. Like, yeah, it's got the goofy teen sex comedy stuff, but that ending?! Seriously, what the heck was that?! I went from kinda giggling to feeling like I'd been punched in the gut. Like, Gary's such a sweet guy, and to see him get totally played like that by Karen…ugh, it just made my heart ache. Did anyone else feel absolutely terrible for him? I kept thinking, what was she thinking?! Did she even care about him at all? I know, I know, it's a movie, but it felt so REAL. Like how easily someone's heart can just be tossed aside. And the whole slow dance at the end, him all alone? I almost started crying right there in my living room! The soundtrack made it even worse, tbh. So powerful to use that song and the lonely last dance! Did the director HAVE to make us feel this bad for a seemingly random teen movie, or am I just too sensitive? Like, the rest of the movie is kind of your typical 80s romp, but that ending really stuck with me. I actually felt so bad that I needed to come in and tell someone! And it made me wonder - did anyone actually like Karen and defend her actions? Is it possible that I was too involved in Gary's character? I can't be the only one, right?! There's no way that I was the only one to get totally devastated by this ending, right? So, seriously, did anyone else have this kind of reaction to "The Last American Virgin"? I need to know I'm not alone in feeling completely emotionally manipulated by a silly teen movie!