<human>: Give me the gist of the text in a nutshell

So yesterday my girlfriend wanted to talk about serious stuff and asked me if I really wanted her, to which I said yes. She asked me if I thought she was the one, I said yes.

Finally she asked me if I wanted to marry her, to which I was taken back, and I instinctively said "Maybe". Now, we've only been together for less than a month, but in her culture (She's from the middle east) it's pretty typical of people to get married or engaged very early in a relationship. I've tried explaining this to her, and I told her what I said was a sincere accident and that I do love her very much and one day would like to marry her. She still doesn't seem okay with that though. I think that answer of "maybe" will always be in her mind.

She was obviously hurt by it because she was like "Please don't break my heart <my name>" and other stuff about how there's millions of amazing guys out there, and that I am the one she loves and am the most amazing. I tried explaining that everybody makes mistakes and that I love her but she isn't buying it that it was a mistake. The best thing I've come up with to help is to say that I meant it to be a joke and of course I want to marry her, but that's not true.

I don't want to lie to her just to make her forgive me. I told her the topic of marriage is scary for me. She actually said that guys get scared around the topic of marriage, which in my case is definitely true. She asked me how long I expect her to wait for me. I said at least until we're both done with university, then we can get married.

She said it's okay, and seemed a little better last night when we were talking but still seemed to be a bit upset by it. Hopefully by today she's kind of forgotten about it and doesn't bring up the past.

I just need some advice on how I can convey to her that it was an accident, sincerely. Thanks
<bot>: Told my gf "maybe" when she asked if I wanted to marry her, she's upset by that because in her culture people get married or engaged early in relationships. How do I approach the situation?