Plan B

So I had sex 2 days ago and the guy I was with literally stopped out of no where , checked the condom and left . Haven't been able to get a reach of him ever since and I've known him for years ... I decided to take plan B .. I decided to spend the $50 even though I thought maybe I didn't need to but I did  ... Because well like I said I have no clue what happened I'm so confused . Any who , guess I'll never know what happened that night. Why must guys be such assholes .  Now I'm gonna get a messed up cycle . Not Cool