<human>: Im 18, F. He is in his mid twenties. I've been in love with him for the past year and a half. He is always after other girls. Sometimes when he's bored, he'll talk to me. I have completely ignored him and made extremely rude comments to him before because he forgets about me when there are other girls present...( i keep blaming myself for not making this work)  He lead me on. I really thought he liked me. I was going to make it work. Out of nowhere he starts following one of my best friends. He walks her to her car, and they talks for hours. He looks at her with these glowing eyes. It hurts. Mucho. i have had about 3 mini panic attacks, i have cried everyday for the past month. I have to see him EVERY weekend starting with tomorrow. I know i'm better than that, and i know i deserve better. So, now how do I deal with this? How can I be happy for them? How did you cope with your SO moving on? I am scared. I am crying, tired, nausous, disappointed, guilty, sore, depressed and numb. I am a strong girl, this is NOT normal for me. I never cared much about relationships before him. Just thinking about seeing him tomorrow makes me feel nausous and I want to run away.

Can you give me the gist of the text in a nutshell?
<bot>: im madly in love with a guy who lead me on, now he has moved on to one of my bestfriends, and now i feel like im gonna explode