You seem like a great guy and she's lucky to have you. Learning someone you love is suffering with depression as someone who lives with it as well is one of the most difficult things to hear. When I found out my best friend is dealing with depression I didn't really know what to do. He won't talk about it because he's worried it'll upset me - he's been there since the beginning and has held my hand on my worst days and has always been there to pick up the pieces. I try to be as supportive as possible and remind him that I love him and I'll be here if he's ever ready to talk.

I think that's the best thing you can do for her: remind her that she's loved and you're there for her, no matter what. Support is the most important thing when dealing with depression. It's a long and difficult road but manageable when you have someone with you to walk down it.

One helpful bit of advice that I can give you from personal experience is don't hold onto the relationship even if you're unhappy with it just because you're worried about the pain it'll put either of you through. Adding more stress won't make matters better.

I hope that you two can bring some happiness into each other's lives. I know it's hard, but you can hold each other up.

Feel free to private message me if you'd like to talk. I'm here for you.