If this is you my friend I want you calm down, count to ten, and follow these simple steps to not be a psycho girlfriend. Maybe he's in the wrong, maybe he's not. Neither are excuses for this kind of behavior. Acting crazy only makes him look better.
1. Take an Ativan. If you do not have a prescription for Ativan or something similar, take one shot of Nyquil.
2. Send him one text message and ONLY one text message. Say something nice lie "I hope you have a good night baby! I miss You."
3. Do SOMETHING. Go out with girlfriends, read a book, watch a movie, cross stitch a bunny rabbit, whatever. Just get your mind off him.
4. Take an Ambien. If you do not have a prescription, take another shot of Nyquil.
5. Pass the fuck out.
If he's still being a little bitch master in the morning, dump his ass.