I could have written this - 10 years ago.
I decided to let it go and that my children needed us to stay together.
My 'D'H was also having what he called 'friendships' with other women - I called them 'affairs'. I will never know if they were sexual or not.
Now, both our children have left home, nothing has changed - except I am planning my exit (there are many other factors, but lack of sex and intimacy have been prevalent throughout our 22 year marriage). I cannot wait to leave and I am hoping to do so in the next 6 months.
I have had counselling on my own (tried twice with H - but he decided it was not for him both times) and I can now freely discuss how H has made me feel over the years. I have no confidence or self-esteem, I can't watch anything romantic or sexual on the TV because it hurts, I avoid couples as they make me sad, I gave up a good friend as she kept saying how her DH kept jumping on her at any opportunity, I think I am unlovable, unattractive and a useless wife, I am basically a housekeeper employed by my H.
I am working on my emotions and am slowly changing how I feel about me. This has (nearly) all been caused by his lack of affection and desire for me. I allowed him to treat me this way......
Please think really hard about how you proceed - you deserve to have a sexual side and your DH is being selfish.