I am a male in my late 20s have been in a 3 year relationship with the girl (or better said a woman) (mid 20s) and engaged for over half a year. I have been living by myself while my fiance is still with her parents. Although we really love each other and she gladly agreed to marry me, there is an issue with her parent's (mother in particular) which seems to have a fundamentally damaging effect not just on our relationship but on her personality as well. In a bit more detail:
Shortly after we started seeing each other, I realized that her parent's are very strict. They did not allow her to stay over at my place, she had to be home on time (midnight the latest at best!). Back then I took at as a sign of good family values and went on dating and establishing trust with patience. As time gone by, nothing much changed. And the only way to spend time together (at night) was for her to either sneak out, or just not come back home, for which she would get in weeklong fight with her parents. She started to say things like they will not let us be together unless we marry. So we went on seeing each other mostly during the day, with once in a blue moon sneak outs. Later I started noticing that she sometimes lies to them about working or studying while actually being with me and getting caught lying to me several times she confessed that cuz of all these crazy rules that she can't yet stand up to, she developed a habit of lying to avoid trouble back in a teenage-hood... Again, having a good understanding of her situation, I did not take it too serious and both of us continued to dream about being together soon, once she finishes Unv (she is into her last semester now). I was going to propose after she graduates but decided to do so last year in hopes that her parents will take me more seriously and give us a bit more freedom to be together. But nothing changed, I think it made things worse as her mother clearly hates me (from what my fiance says). She is not allowed spend a night with me, my gf still lies to them half of the time we are together, and again got caught lying to me about little and medium things here and there. (I just don't want her to turn into a compulsive liar and bring this horrible habit into our relationship and future marriage).
Whenever I try to encourage her to stand up for herself and start making adult decisions, I get an aggressive response on my lack of understanding and she should obey her parents. Sometimes she even bring up what her mother thinks of me, things like arrogant and self-centered (first time in my life someone thinks about me this way)
The whole situation frustrates the F*** out of me and makes my blood boil inside my brain. We are adults and have all the right in the world to be together engaged or not! damn it... She says that after graduation she'll be ready to move in with me, but Im just starting to realize that this transition from being under constant and unhealthy control and in complete obedience to easily leaving her home and parents won't happen over a weekend...
How should I go about and handle this situation? I am running out of patience, reasoning and feelings at this point. I am losing confidence in myself as a man, in my head running over reasons why I may be not good enough or is it that my girlfriend is just nowhere near ready for a commitment.
Any advice and feedback is appreciated!