They are all lovely in the beginning hun. If he is on last warning from the police for fighting, he obviously has very little self control and still has a lot of growing up to do.
Also if ge is on and off with the ex and there is a child involved, there is usually only one outcome and thats heartache for you.
Save yourself the bother and enjoy your freedom for now. You're much too young to be getting into any situations involving other people's children and baggage. Enjoy yourself and have fun, wish I had instead of getting saddled with a boyfriend at 18. X