Hi,
I have know my boyfriend for 5years now and we have a three month old son,we are planning to get married but I suspect him nursing another relationship ,what do I do?

Find out for sure. If he is having an affair, dump him.

A heard a little quarell this weekend and my boyfriend and he said he never invited me for weekend and that he would not miss me if I d'ont come.

So don't go.

If you intend to marry this man you should be able to talk to him - ask him straight out.

And there are two types of cheaters: serial cheaters and one time cheaters. Only you know which category he is in.

If you plan to have such a serious relationship, then you should feel comfortable enough to ask him anything. You have to make things clear before taking the next step. And he has to be able to handle these types of questions if he wants a serious relationship with you.

I want to take a break in my relationship,I suspect he is cheating on me and always cheates on me very often.

If he has cheated with you before why are you still with him?

Trust is the most important thing in a relationship, if you can't trust him then you need more than just a break. You need to end it.

Tell him your out of here! No drama, no fuss, just leave.