I was with my ex boyfriend for 5years and we have two children together we split up almost 7 years ago and things are not that great between up but for the past 1year are so I've been dreaming about him all the time

I'm not sure what your question is... but I will comment that dreaming about him seems normal to me. He was a big part of your life and remains the father of your children. Any memory, conversation, etc. can trigger a dream response.

I still have semi-frequent dreams about an ex I was with for 7 years... but haven't been with for 13 years. If I even drive by a place that we used to frequent, I can't help but think of him and it will sometimes result in a night or two of dreams with him in the staring roll.