I know I was uncomfortable when my now XABF only wanted to spend saturday nights with me after 3 years while we were talking about marriage and planning on living together.
I told hime what I wanted and needed, and he had a lot of excuses, which I happily belived (because at least it want me and lack of loving me!).
Turns out I should have listened to his actions not his excuses - he really did not want to live together or share that much space with me.
My advice would be to really think about what you want and your needs and see if you are getting that. Maybe the reasons why you are not getting what you and and need are less important than the fact that you are not getting them!