Marriage problem, please help!

Assalumu alaikum,
I'm a recent graduate and I was doing my very first job. I love a guy. My parents, specially my mom is not accepting his proposal for my hand in marriage. They say he is okay but I deserve a lot better.

He has a financial issue, that is, we can't afford a car or a lavish wedding right now. He is at his earlier career and doesn't earn too much but enough for the two of us. Though it's not a forever situation. A stable life is waiting in near future. If I had continued with my job it would not be hard to continue our married life financially for now but my parents forced me to quit the job(I can find another job though). Moreover I don't want a big fat wedding, it's prohibited in Islam. But my parents take it as a prestige issue.

I lead a Islamic life and we never do the modern datings.I have maintained all sort of distance that are asked in Islam very consciously.

Still for the sake of my parents, I thought of leaving him. But it's really unbearable to think of my life without him. If I marry someone else, I don't think I would be able to make them happy. I've started to hate myself, and I can't take it anymore. please give me an Islamic solution for my problem.

P.S: my parents fixed my marriage twice before(with the same guy) Both time my family broke that engagement where I played no role except getting hurt. I met my bf amidst of these two engagements. He is the one who comforted me while I was in such a pa