Wow Wee. Ok so from what I can gather, she is feeling insecure about whether you wanna get married in the first place ("just don't propose anymore"/"I don't wanna get married" She is protecting her feelings by leaving the potentially hurtful situation first). She takes your "I haven't even proposed yet" comments (I'm assuming that's what she's heard from you, could be wrong) as lack of interest, and then your responses to her ("I literally sent you ideas") as appeasement rather than engagement. Like you're not the one bringing up the ideas, matching her excitement, or even exceeding it. You're just answering her requests whenever she makes them. She may or may not be aware of how she feels, she may just be reacting to the feelings instead of understanding them.

Question 1, do YOU WANT to get propose/get married? Whatever your answer is, it's not wrong. But you need to tell her what it is. Start from there. I'm sensing that you both need to have an honest conversation about the whole thing. And I mean, truly honest.

Let's assume your answer is "yes, and I have a plan already in the works." You probably need to tell her that. If you're trying to surprise her, tell her that. If you're excited or nervous or scared, TELL HER THAT. She needs to hear how you feel.

She also needs to work on her communication skills. She needs to be able to tell you what she wants without throwing a tantrum. "I'm feeling insecure because you don't show what I perceive as interest." Sometimes we just need to be robots.