My sons hate each other.

I don't know what to do anymore. My two sons (19 and 14) hate each other. Everything one of them does the other criticizes or mocks, they've got common interest (video games and superhero movies) but won't try and share them together. They constantly argue and I'm honestly at my wits end on what to do. Soon my oldest will be moving out and for a while I thought that'd be the best but now I just think it's going to drive them further apart because never seeing each other is exactly what both of them want. I've tried sitting down and talking to both of them but that's only resulted in them tossing blame. What am I supposed to do? via /r/Parenting http://ift.tt/2A31Vho