I need some perspective

[ApplesAndPearsStairs]

I would really appreciate your help and views on my situation to give me some perspective.
I have been married for 7 years, with my DH for 7 years before marriage. We have 2 young boys.
The relationship has had its ups and downs. Our sex life is poor, we have massively drifted apart but we still like each other.
About a year ago I met someone at work, also married with children. Nothing has happened between us but there is very obviously a strong mutual attraction there. We have spent many hours talking and are extremely close.
I am considering splitting up with DH because of how I feel about OM. But would it be stupid to put a rocket under my whole life in the hope that one day I would have these feelings for someone else who is available? I'm confused.
Just to clarify: I haven't done anything with OM, I haven't told him how I feel, I don't intend to tell him how I feel.

I would strongly advise you to try marriage counselling. I left my husband of 20 years for a 'soulmate'. My marriage was stale, I thought I had fallen out of love, he was exasperating although he loved me dearly. I threw a lot away for what turned into a six year nightmare. I wish I had given my husband and my marriage a proper second chance. With hindsight, a lot of my perceived marital problems could have been helped by HRT.