Hi @Carlo, Ive had quite a few treatments in hospital the past couple of months and I dont know how I could have gotten through without my partner's support likewise, I have been there for her when she has been in hospital in the past.
Its called a pernership for a reason, ans your partner only seems to want you around when she needs it... based on what you've written.
You ask, why do you keep doing this? I cant tell you that, but it certainly sounds like a very one sided relationship to me. So one sided, i wouldnt even call it a relationship. Do you think you stay with her out of a fear of then being alone? Some people will put up with a lot of neglect/abuse because they tell themselves its better than being alone The truth is its not, and I think yiu realise this and is why you're asking this question.
I don't know any more about your situation other that what you've written, but it certainly doesnt sound like there's much respect for your feelings here. You deserve soneone who will give you that, and you wont be happy with someone who doesnt love and care for you as you do for them.
I cant tell you what to do, but I honestly think that you have to think about how happy you are in this relationship, and how much you deserve better. Sometimes low self confidence and esteem can make us put up with things we know are bad for us, but that fear of being alone keeps us from doing what we know what we should do. Whatever you decide, make the decision based on what you want and deserve, not what you fear.