I, and I'm sure many others, can relate to what you are now experiencing. Unfortunately, your suicide attempt probably made your friend uncomfortable, and there's probably an awkwardness with her now because she doesn't know what to say. It hurts even more, when you thought she was a real friend, that would stick by you through the good and bad times. The good times are easy! It's the bad times that show true friendship.

All that you can really do is leave the door open, and let her know that you're willing to talk if/when she wants to. It's her job to tell you what's bothering her or what is making her uncomfortable. I do believe if people would do this, rather than keep it to themselves, the awkwardness would go away because everything would be out in the open. Rarely, if ever, does this happen.

A familiar theme.

I wish I could tell you something more useful, but this is the best I've got. If she returns.. be open to discussion, and be willing to listen to her concerns/fears, etc.

I wish you well!!!
-cbox