To make it short: I went to my girlfriend's work to see her during her lunch and she was talking about how one of her coworkers was really tall. I saw this tall woman walk out of the door to her office and I was, for lack of a better word, intrigued. I told her this. Then she said to me, "So would you like it if I was taller?" I said (without really thinking), "Oh, I would LOVE it."

It was then that I realized my fault.

After I left, I tried to reconcile with her and get her to forgive me and all that. I have a tendency to beat myself up and have a desperation to fix what I broke. In turn, she has a tendency to avoid talking about what she's thinking, or if anything is wrong. She has also told me that she is incredibly insecure, and I know my comment was not what she needed to hear. It is absolutely inexcusable and I hate myself for it.

I feel like I've started a breakdown of the entire relationship, and I'm terrified of what is going to happen next. I'm posting this at work before I go home because I'm afraid of going back, honestly (we live together). And now I find myself afraid of saying anything else around her, because she has said she's picked up a few things I say that make her uncomfortable. I have no idea what they are because she doesn't tell me. I always try to be genuine and positive. Sometimes I poke gentle fun, but I don't mean anything by it.

Looking back, I have no idea why I even said that, but the point is, I did. I have to live with it, and now, so does she.

Any healthy replies would be appreciated. I need to talk to anonymous people. That's why I'm glad this site is around. Thank you in advance.