Re: Why do people try to push you to date?
People push others to do thing that they themselves enjoy in the misguided attempt to make them happy. I like Thai food, so I'm going to try to convince my friends to try Thai food because I want them to enjoy it the way I do. Its misguided, but I think it is a legitimate attempt to be nice.
As to the other part, most likely your sexless marriage was entirely due to him. People in relationships with low desire, asexual, porn-addicted etc partners often feel that they are at fault. They almost never are.
If you are a nice person who enjoys intimacy and passion and enjoys pleasing others, there will be plenty of men who will desire you. I think that when you finally get together with someone who cares about you, who is attracted to you, who enjoys pleasing you, you will be amazed at how wonderful it is.