Im married but am crazy in love with my Ex!! Help?

Im 30 and have a 7 year old daughter with my ex girlfriend who is 26. I am married and have been for the past 2 years. My ex girlfriend was the love of my life and she is still all i think about. I was so hurt that after she had our baby that she broke up with me to live a little and travel with our child. I have known her since we were kids and i have always been in love with her & still am. We are all good friends and have close friendships but my wife is very jealous of my ex. When my ex and myself were together we were almost inseparable and i could never get enough of her, i still cant. My marriage has been in trouble after a few months of being married as my wife is very controlling and seems to never let me be myself & we have been having fights and screaming matches alot. We are seeing a counselor to save our marriage but its not helping all that is on my mind is my ex, i adore the woman i am crazy about her, i love just seeing her and being around her and get really pissed off and jealous when she starts dating someone. She is such a free spirit and our daughter takes after her. She told me that if i wasn't married she would be with me but doesn't want to be the cause of a marriage ending and respects my wife. I may get a divorce. Any advice im going crazy?