I Like This Guy From Work...

I started this new job 3 months ago where I met this guy,we work in the same company, he is much older than me,he must be 60 years old, but he still looks attractive , I am 30 years old.
He was very nice since day one I started this job, he often offered me a ride home from work, and in the morning he came too to ride with him to work,but since he came from holiday a week ago,we spoke but didn't say anything about going with him anymore,only asked If I have with who to go to work because I don't have a driver's license.
I think that the reason is his wife,he remarried couple years ago with another woman and I think she might be afraid that she will lose him, he never even mention once to me about   his wife, I didn't even know he was married I heard this from a coworker that his wife is kinda obssesed with him.   
I am kinda sad that he is married because I kinda like him and I feel that he likes me too, I wish we could be together, I really want him,but I don't know how to make him see this because when we are together alone I tend to be really shy. :(