<human>: edit: title should say (moved on a month after)

So me and my ex have class together but he usually doesn't go to that class. Today he came and sat a seat away from me. I didn't pay attention to him for the most part just tried to stay productive and want not. After class he asked me what I had been up to and stuff. We talked for a few moments and thats when i noticed the hickies on his neck form his new gf who he started seeing just a month after we broke up. 

Now I am extremely upset and I'm not sure why exactly. We have been broken up for almost 5 months and I thought I was over everything. He broke up with me btw. We were together 3 years and I loved him dearly. I guess I'm upset still that he moved on so fast and seeing those hickies reminded me of that fact, and also that he is moved on and we don't have a future anymore and that he doesn't love me anymore.

I'm starting to worry that I'm never going to find someone again too and that no one will ever love me again because he moved on so fast to someone new and I haven't.

Condense the text into a few key points
<bot>: saw ex after thinking I was over it, feel very upset now. Need some advise cause I feel like I will never be loved again.