I need some advice..what is being said here..please be honest and reasonable?

Your cousin is just being mean, let him go and get on with his life. Divorce can affect different people in difference ways, and you don't sound like a very confident person but more an anxious type and someone who worries and feel distressed in times of crisis. Your cousin doesn't understand because it probably wasn't his experience and he probably doesn't know how to deal with sensitive issues. I wouldn't talk to him again about it but you could maybe seek therapy about it and open up and start dealing with how you feel about it to help you to heal it and put it behind you.