I feel that my girlfriend is greedy and forgot to give you some advice.

The first question is whether the cost of living is a problem in your eyes. In other words, you don't care whether the money spent on her is there or not. Then OK, continue. Anyway, she is a woman who wants money, and you know that she won't be your wife in the future. You can save face with whatever you want. You can even date other girls you like at the same time.

Second, money is a problem. I can see that she is not very single-minded about you. Since she wants money, the students can't satisfy her in the end. It's better to have a long pain than a short one. Never mind what your classmates called sister-in-law. Come on, it's normal to break up in college. Just relax。 As for meeting in the same class every day, have you heard Eason Chan's Want to Cry? For the most familiar stranger, nothing happened is the cruelest revenge.

Finally, I suggest you break up, because she is not worthy of your love.