Do you think Talk would be willing to work with you on just PORTIONS of bigger problems, a little bit at a time...?
If you put it out there, from what I've read of her's, I think maybe she would...
The fact that you two aren't getting worse (in your opinion), suggests to me that she might still be willing...
All you can do is put it out there... and offer your FEELINGS when you do... LET HER KNOW that you are SCARED to talk about these things or that you are EMBARRASSED or what ever the feelings that are holding you back from breaching the "tough" talks... it might help that you show your soft, underbelly of vulnerable...