Friend who's jealous and holding a grudge possibly?

So let me start by saying I've been friends with one buddy since I was like 10. We had a similar upbringing. Both of our fathers were successful and helped us financially. Thing is his became an alcoholic and drank himself to death while mine, (who had a heart attack and still works at 68), still lives and helps me financially.

Now I'm 30 and my friend is 25. We both live on our own, but work in the same job and same position. Thing is he's really jealous of me because I get more hours than him and living in the city we live in you need help so I am. We get paid $15 an hour but its only for 8 months of the year.

Plus he has a roommate and I don't so we pay the equal amount of rent and he's still having issues. I pay for my visa, cell, hydro and most of my rent and he is going around the workplace bitching about what I spend my money on and the fact I get help. I hate to get help but its just the way how it goes and I didn't want to have a roommate. So my question to you is how do I deal with a friend who is jealous and potentially holds a grudge. I still consider the guy a friend and feel sorry for the bad luck but want to try to help out. Any suggestions to help someone not be jealous?