Major problem with my girlfriend and I don't know what to do anymore

[thomas123]

I have been with my girlfriend for a little more than 3 years now, we are both 20 years old.
Now we are both attending university and we finished our second year. My grades are very good but hers aren't. I don't know how the system is in other countries but here in Belguim if you don't pass your course, you have to do it again in august. In these 2 years I've never had to redo my exams, she on the other hand had to do 6 in august last year and 5 this year. She is super jealous and it's really killing our relationship, she says that I should intentionally fail some exams so that she doesn't have to study alone in the summer but I feel that she cannot ask something like that from me and I won't do that, ever. These fights are just repeating themselves because it's already since our first year in university that we have these kind of discussions and when we do have discussions, she can be really mean.
Also, we never had a good sex life, but in the last year, we maybe had sex once every month (if I was lucky) but now it has been 2,5 months since last time.
Her arguments are that it hurts, she says that she just doesn't need it, she even says that she never thinks about it and that she can live happily without doing it.

Also we recently had a huge fight (she wanted me to apologize for my good grades ) and I just didn't want to do that, and she gave me 2 options, if I walked away, the relationship was over and although my mind said "do it, it's maybe for the best", my body didn't move. This says that I still want to make it work but I need some female advice.

I'm sorry for the long post and the grammar mistakes.
Thank you

[maibao96]

She's jealous that you're doing so well. I felt this way at times too but it only motivated me to do better. In my opinion, she doesn't want to you to look at her differently because of her grades but at the same time she envies how well you're doing. It's to the point she's telling to fail a couple so she can feel better about herself. I think that you need to think about your relationship with her. She should want you to do your best regardless of how she is doing. It's an insecurity that is making her vicious.