What do i do about my cheating boyfriend?

I am in a relationship for two years and my boyfriend cheated on me with a younger girl. We all work together, he said it's over but the girl get so friendly with the family and sister want him to get back with the girl. The problem is we have a baby. So...

what can I do?

So, you're still with this guy? And he told HER it was over? What do you feel you want to do in your heart? Evidently this guy doesn't seem too care much that y'all have a child, or else he wouldn't have fooled around in the first place, if you know what I mean. If he wants her, let them be. I know that hurts and all, but you'll find someone who will treat you and your child better.

He cheated on you, end of story. You need to take your baby and leave becos you cant trust him, if he has it in his heart to cheat on you while you have his baby and have been with him for so long then he has no respect for you at all and will do it again. You need to put your foot down and let him know this is not ok and leave!