Do I Love my girlfriend for the wrong reason's?

Hi, I’ve been with my girlfriend for 2 years now, she is amazing and i love her to bits. We haven’t much of a sex life of late (10 months!), my choice really to which concern’s me as i have always had a reasonably high drive when it comes to the bedroom. She is intelligent, funny, has a great personality though alittle pessimistic at times and she looks after me, which i’ve never had done before in a relationship. She doesn’t turn me on though and just because of this, should i stay with her?? She has so much gong for her, She’s in her Final year of Uni, aiming for Top marks, she has had problems at home and with a close friend passing away and it’s been a struggle. I have also had a court case going on with an ex partner regarding a child we have together. We have been through a lot in the 2 years and have helped each other with full support along the way. We both can see a future for us but is it my selfishness in knowing that she will look after me? We get along well, we Love each other so much but is my Love for the wrong reason’s? Please help. Is a relationship just about sex?