I have way too many relationship issues to be giving good advice on that part.

One thing I do know about is depression though. Depression is a lifelong illness (unless we're talking about situational depression which doesn't sound like the case here). Any situation current, past, or present can most certainly trigger your depression to flare up. Part of staying healthy is identifying your triggers and then avoiding what you can and learn coping strategies for what you can't. Hope this helps some. Trust your heart!