<human>: Hi,
I'm a 22 year old male and my gf is 20. We are in a relationship for 2.5 years and living together since 1 year.

Our sexlife has gotten continuously worse. We went from 7 times per weak to once per weak and right now the last time was 3 months ago...

The strange thing is, that I am the one objecting and I don't even really know why. I really really like her and could not imagine living without her, but I feel zero sexual attraction towards her.

I don't think, that it is a physical problem of myself, because sometimes I do feel attracted to other girls(But did not touch anyone!).

From what I have gathered in this subreddit so far, it might be a problem with her personality. She is a very kind and a little weak type.
Her mother and others in her family have/had problems with severe depression. I guess my gf goes in the same way. There have been times, when she was crying about random things every two days.
Of course she is also not happy about our sexlife.. In recent times, that was often a reason for her crying.

Sometimes I dont feel like her boyfriend, but more like her big brother wanting to protect her.

Now tell me please, is there any hope for this relationship?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: No sex since 3 months in a 2.5 years relationship. I am the one objecting and feel more like a big brother than a boyfriend.