32 years later husband says never loved me

We've been married 27 years, together 32 and have 2 great sons aged 18 and 23. My husband says he wants a divorce that he never felt that "spark" when we married. He says it started out as convenience because he knew I wanted to get married and he wanted to make my happy. He also said that we got pregnant because I wanted kids. He has left me twice, once in 01 and in 07 and said he returned for the boys. He loves his sons. Now we are 6 years later again and he says he needs to find "true love" so he wants a divorce. He says it would be a lot easier to stay if he loved me but he doesn't. It hasn't been all his fault-I have not been the supportive wife over the years and dressed like a washerwoman (no offense). Probably no excuse but I was brought up in a home with no dad, alcoholic grandfather and a mom and grandmother who fought constantly and were abusive to each other. Now, my husband got a face lift and encouraged me to do so which I did. I have lost weight and never felt better in my life at age 62. We have been having fabulous sex initiated by both of us-there is an undeniable chemistry that was always there but just faded over the years. I love my husband. Even though I have criticized rather than complement him over the years, I have always admired him very much. He is a wonderful man and I don't want to lose him. I feel like I haven't help nurture this relationship over the years and give it the TLC it needed. Is it too late? Any positive advice please!

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