<human>: Can you give me the gist of the text in a nutshell?

We've been together for a bit over a year. We have a pretty good relationship. We generally stay in, but we go out every now and again. When we just get dinner or any kind of casual outing, she's fine with me wearing whatever shoes I want, but if we go to any kind of formal event she insists that I wear 2" lifts with thick soled shoes.

She's done it 4 times now. The first time she did it was around 9 months ago. We were going to her mothers wedding and she came by my place and she had bought lifts. I didn't think it was a big deal at the time, so I just wore them. The next time was our anniversary. We were going out for a nice dinner and she literally got down on her knees and begged me to put them in my shoes. Pretty much the same thing happened on her birthday. Then last night there was this orchestra that I really wanted to see. I bought the tickets ages ago and I've been really excited for it. I didn't want to wear the lifts, but she refused to leave the apartment unless I put them on. I wanted her to be there with me, so I put them on.

It's so frustrating because it makes me feel like I'm only good enough for her if I'm 3"-4" taller. I'm 5'4 and she's about the same height. But she wants to wear heels all the time and wants me to be taller. 

Other than this our relationship is good. I love being with her and laughing with her. I don't know why this matters so much to her. This is my first relationship, so I don't really have a wealth of experience with women. I know that short guys aren't all the rage with the ladies, but is this normal? Like is this what all girls do if they have a short boyfriend? I've talked to her about it but she tells me it's not a big deal, it makes me more attractive and that she wears make-up for me. I wouldn't care if she wore make-up or not - or whether she was taller or not, for that matter.
<bot>: My [M19] girlfriend [F20] makes me wear lifts when we go out. Is this something I just have to deal with?