Issues with parents

I'm not entirely sure what to do. My boyfriend's mom and my mom do not get along, to put it politely. They don't like each other, and they don't want us dating as far as we can tell. They won't ever compromise, and both can be the perpetrator at times. We tried to get them to Gabe a conversation, but that flew out the window pretty soon. They do not have a mutual respect for each other. For me, I get upset every time something happens and get over it. For my boyfriend, he brushes it off for a while but it obviously strains him, until it gets to the point of him getting completely depressed and at times sounding suicidal (though he'd never go that far). Overall, this is putting a huge strain in our relationship. We're close to seventeen in age, but with prom coming up, it's been causing more issues. At this point, I'm not sure how to handle this anymore besides just completely avoiding each other's families, which sends a bit overboard and wouldn't work forever.

Thank you in advance!