Yeah Hotrod, you gotta try and keep it together, especially as you have a kid. A friend of mine went to Relate and it really helped. I myself would be a bit reluctant to try councelling, but sometimes you have to swallow your pride and say bollox to anyone who laughs.
At the same time, if it's totally fucked, best to just call it a day. I dragged a doomed relationship out for 4 years.