Jumping out the window?!?!

So my boyfriend of almost 10 months tells me that he doesn't want to be with me anymore and I'm bawling my eyes out at this point (not to mention we just had sex) he stares out of my bedroom window (two-story), next thing you know he's trying to jump out and it's a flat drop, then after everything is all settled and done , we have sex again and he asks to cum in me.... (continued) now he's saying how stupid he is for hurting me like that and how he won't do it again, but I want to believe him , just what he did was freaking crazy. Now he doesn't want to talk about it but all I want is to know why he freaked out and did that , does anyone have any advice on how to have him communicate with me ???