I don't blame you! I'd be upset too if he deleted my comments...and added a new girl to his top friends...that's a little too much of a coincedence for my liking
Don't stay with him only because he'll make a good dad. There are lots of other men out there that will make great dads too and I know one of them will be the guy for you. AND I bet he won't be the one that deletes your comments off his myspace page!