4 years and now a breakup

Torii J • 21. City girl with a southern twang 901. Culinary student. God is my father and my Allie is my angle.
I was with my boyfriend for four years. We started dating when i was a freshman in high school, and he was a junior. It was like the classic relationship you would see on tv. He was a football player and I was a cheerleader. My family loved him and his loved me. We were off and on over the course of those four years, but no matter what happened we got right back together and never stay broken up for long. We recently broke up about two weeks ago. I'm having the hardest time dealing with this, while he is seeming to he moving along just fine. We still follow each other on social media, I can't bare to watch his snap chat stories. But this morning when i woke up I did. I saw him with another girl, it broke my heart. I told him how i felt but he hasn't even woken up yet. I don't know how to deal with this. Help. Oh and he's 22 now and I'll be 19 in December.