Love can change everything?

Love can change everything! It's that correct? How do you think?

Most of the people believe in love. The one they love will understand them.

For me i have no idea what the girl doing. We have different religion, we love each other but she worry about her father and related. Her father not allow for different religion. But she act me like all kinds of girlfriend does. But will not merry me. What am i suppose to do. To merry me. I'm in pain. Can't she change her mind for love. Just merry me and live together forever. No need to change religion. What would you say?