Whys is my Boyfriend being like this with me??

Then by all means, finish with him. He sounds childish and passive-aggressive at best.

Do you think he's trying to get me to finish with him?????

Could be, but why would you even want this kind of man around your son?

because i love the guy, he is sweet and kind and he is so upset with himself in what de done but he keeps saying im cheating

the same guy you asked about before?

http://able2know.org/topic/357703-1#post-6322515

he's not getting better, sounds like he's getting worse

the guy you are posting about does not sound sweet or kind

he sounds nasty and manipulative

It is very typical that a partner who participates in "cheating" type of behaviors to soon become paranoid that the other will now look for other candidates. It is part of their guilt and coping mechanism. They in this type of insecurity causes them to do it again. You've only been together for a year so most of his emotional needs may not have been met yet and obviously neither are yours.
I have done this type of cheating with my own husband. Mostly due to my raging insecurities and gap in our relationshipin communication. I understand it's difficult but there's a greater issue at hand for his behavior whether it be habit or disconnection from you.
The more key part to your circumstance is you don't have time to deal with this while raising your son. There will be unwarrented affects on your son and this type of enviornment isn't worth it. Any grown man willing to be in a relationship with a child would understand that.