<human>: Can you succinctly summarize the text in 1-3 sentences?

Okay so we met in college and we were great friends for a month before we started dating and we are still the best of friends and lovers. We had sex about 2 months into the relationship. It was not my first time but it was her first. She firmly believes that I am the person for her and she has made it clear multiple times that she wants to get married in the future. To be clear, I love this girl and I have intentions of marrying her.
I am getting overwhelmed because of the topic of engagement and marriage constantly being brought up by her. I don't know what to say. I am a sophomore in college. I have deeper feelings for her than I have ever had for a girl before. She is a senior in college. She keeps wanting to talk about getting engaged and maybe doing a promise ring and keeps hinting at the fact that she wants to get married and I have had a long talk with her about it but she won't let it go. I don't know how to get the point across that I will not be ready to get married until I am graduated from college. The topic continues to come up and I've said we have talked about this multiple times before but she just laughs and says "yeah I know, just try to remember where my mind is."
<bot>: my girlfriend won't stop badgering me about marriage. it's stressing me out. Not sure what to do.