wanting to know how it is with another man!?

Is it wrong that I would like to know how it is sexually and relationship style? I'm 28 and I've been with just my husband for over 13 yrs and he was my first for everything I've never been with another man but lately I've been thinking about of about it on how would sex and how would I be treated. In just so confused. 
Our relationship is far from perfect for where it was 3 yrs ago he's changed a lot we don't have sex really at all maybe 2-3 times a month, he never wants to do anything I want to do, it's his way or no way, he doesn't want to let with the kids when he's home and he's home 3-4 days a week. We have tried going and talking to someone he didn't like it he thinks no one needs to know our business.