Whatever emotion she has, it is not because it is a problem. It is because she wants it to be that way.
In general, applying to all genders, if you are angry, it is because you to be angry. If you are happy, it is because you want to be happy.
How does this help?
First, there is no need to solve her emotions because you are taking away something she wants.
So rather than trying to help solve her emotions, simply accept and acknowledge that she is the type and these emotions benefit her in some way.
Knowing that about her, go along with it and see how you can make it work.
Furthermore, if she is telling you all her problems like the guy she likes or that she is depress, it is an indicator of disinterest. She does not care what you think of her and she is looking for a therapist to listen to her, but once she feels better, she will look for somebody who doesn't know about her problems. She is much too embarrassed to be with a stranger that knows her dark side.
Your strategy should be to lead the topic into something you like to talk about.