Gets belligerent and physically abusive when drunk.
Cries, says he's sorry, and begs to come back to him.
Promises it will be different this time, he has *really* changed.
Not buying it? OK, he'll write a song "just for you", and play it for you.
He will tell you how he misses you and that he changed just for you.
Compulsive liar, and VERY good at it - lies seem natural and effortless to him.
Will lie ABOUT another person to you to make himself look like a victim.
If caught lying, will make up another one to cover getting caught.
Sound like Buddy? If not, just give it time, it will sound familiar when you get to know him.