I need to know if I should leave him or not?

Quote: mellymel2105

So just to be noisy I looked at his messages and I found numerous message he exchanged with a old friend he has known since high school. The messages were in no way innocent. They were dirty and things that me and him should be talking about.
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Now I have kind of done the same thing myself and of course he doesn't know this but I am so hurt

Perhaps I'm the only one that feels this way, but it appears that you are upset that he is doing something that you yourself are doing. You can't be upset with him for something you are doing, thus you must be upset that he got caught doing it, while you haven't been caught yet. Him being caught would seem to indicate that he is either careless or stupid. Either of those characteristics would be sufficient for breaking up with him.

And in case you missed the sarcasm in my answer, then here is my real answer: break up with him. You're both too immature to be in a relationship. Break up, figure yourself out, then try again.

To the OP, your relationship sounds like one I had in the past.

However I was 13 at the time and at school.

For someone with a child you sound extremely immature for a start. You also sound like the kind of person that will put up with nasty treatment from men just to keep them. And also you sound like you can also be nasty as well.

Who is going to suffer by all this nastiness and juvenile behavior.... yep your child.

Dump him, raise your standards of maturity, and standards of men you date in the future, but most importantly put your child first ALL the time.