When I was growing up, my dad left my mom and her four kids when I was 7 years old after a really abusive marriage on his part. This left me in the middle (older brother joined military, mom was always worried about him, extremely distant from me all the time, I had an older sister too, so she was the only girl and so got special treatment, and my younger brother, the baby, always was in trouble and my mom became consumed with all his bullshit growing up.) I literally couldn’t even speak around my family because I was so different from them and I was obviously the scapegoat, and since my mom was always occupied with other shit, she never paid me any attention, never talked ago me about my life or school or really anything. Always said she was too tired to even have a conversation even when my older two siblings went to college and my little brother was in DH and I was the only one living at home, she still always found an excuse not to talk to me or show that she cared. When I think back to it I feel like I missed out on a childhood and it makes me really bummed. But, with all that said, I’ve grown to care about myself and believe in myself and have pretty much accepted the fact that my mom doesn’t know any better than to act that way and treat me that way. You can try to talk to her about how the fact that she seems to care more about a random classmate than you and how it makes you feel, but I’m afraid it’d probably go in one ear and out the other. The best thing you can do is make a good life for yourself and prove to YOU that you deserve love and attention and you WILL find the right people who will give you the respect you deserve. I’m sorry your mom is so cold to you. It’s tough and I’m the same age as you and I totally get it. But it’s no use being jealous. Obviously your mother is projecting some personal issue on to you and you don’t deserve to feel any less significant than some girl that bullied you. My siblings bullied me too and my mom didn’t care. But you just sort of have to forgive her for that and accept that she doesn’t know any better and that’s HER problem. I hope this helps in some way. It’s hard when the people you love most aren’t reciprocating. Obviously you live your mom a lot and want her validation just like everybody else, but we’re not all lucky enough to have good parents.