<human>: My girlfriend and I have been dating for more than a year now and I really, really love her, but recently I am having mixed feelings about our relationship.  While she has always struggled with stress, she has recently struggled a lot more due to college applications.  She puts a lot of pressure on herself to get into a really great university, and she definitely has the capability to do so, but due to issues with self-confidence and less than optimal results from the colleges that she has heard back from, she has had a lot of issues with depression and anxiety.  It feels like no matter how hard I try, I can't help her to feel any better, and that makes me feel really defeated and exhausted.  I feel like I can't make her happy anymore, but I keep on telling myself that I need to be there for her in her time of need, and to not give up, but some days it's harder than others.  I feel like I keep on making excuses for our relationship, telling myself that it will all be better once she gets into college, but lately it feels like it may be a more permanent thing.  I have tried asking her to consider seeing a therapist to discuss a lot of these feelings, but she has refused for a variety of reasons.  I am wondering what I should do.  While I still love her, and would never want to abandon her in her time of need, it feels like I can't make her happy anymore, and that really hurts me, and I feel like I don't even know how to help her anymore.

Summarize the given text in a few sentences.
<bot>: my girlfriend is really stressed, and it is starting to weigh on me, I don't know how to help, but I really want to.