What would you do?

So recently my bf and i broke up. Keep in mind this was our third break in the past 4 months. And this time it lasted about a week before i called it quits. Now it was REALLY hard for me to because he was my first love and i didnt want to let him go. But i did, bc i had found out he was flirting it up with another girl. And that same day, he asked her to become his gf and theyre now dating. Now before, i was like okay cool hes moving on but idk. Now im just insanely angry and sad and i havent stopped crying in the past 3 days. So i unfollowed him and unfriended him as well, but now im regretting it. What would you ladies have done?