Search Results: ready for commitment

So my guy friend whom I met 4 years ago and dated for 3 months, got in contact with me on Facebook late last year to apologize to me for not treating me better (he was not commitment ready, I was). He had moved to Texas about a year and a half ago to be closer to his adult son. He got married (not his son's mom) last November. Since his first contact with me, he has periodically messaged me on Facebook. Last night he messaged me saying he tried to text me but didn't think he had the right number.
The last time we saw each other was two years ago. He proceeded to reminisce about our time together when we dated. He also said he's planing a "solo trip" back to California in the Fall, where I also live. I asked him if he was truly happy, his response was "Yes, I think everyone wonders sometimes about how things might have been under different circumstances, don't you?"
I have a feeling he's not being completely honest about how he feels. If I was "truly happy" in a relationship, I certainly wouldn't be reaching out to a former lover reminiscing about our times together.
What could he be going through?

Hi all, I have a bit of a problem... I'm in love with a guy, my age... I've known him for almost a year and half... but it also happens to be a former workmate and now friend of my dad. I would dearly love to give a relationship with him a try but things just seem so complicated because he is now a family friend. He seems interested in me... but it's so confusing because I think he could be both not ready/looking for a serious commitment, as well as not wanting any potential drama with my dad. I would really appreciate any advice as to how I should proceed... also I would love to hear what any guys would do in this situation (if you liked a mate's daughter, or sister). Thanks everyone.

How often do Men date a woman, realize they have/could have strong feelings for her, then pull away or break up with her, because they aren't ready for that kind of commitment yet? Basically, they want her, she is possibly "the one" but they don't want her right now because they have more "wild oats to sow" or because they are scared of losing their freedom or getting hurt, how often does this happen?