Stupid And Childish Attitude On My Part Towards A Woman. How Do I Fix Things?

I acted very stupidly and behaved like a child. It's true that I'm 29, but you know, men never come out of puberty. I have a colleague, let's call her Desi, at 24. We have been working together for about a year. As soon as we met, we liked each other, there was some attraction, chemistry, we flirted sometimes and I got carried away with it, but anyway nothing came of it. I had an affair when we met, and she later caught up with a boy. Although I never hid the fact that I was attracted to it. Anyway, we've both been single for about a month. I started flirting with her a little more diligently, we went to sports together once or twice and we agreed to go for a beer after work. So far so good, but at the last moment of the day we had agreed, something came to her mind. I think it really was, it wasn't a number. But I've noticed that whenever a meeting fails, from there the woman loses interest. So, Desi started to inflate and muffin from that moment. At the next call she was "very busy", she didn't pick up my phone when I called her, she wasn't happy. Abe, it feels good. In general, it is good for a man to be above these things. Well, yes, but this time I failed. It just so happened that at that time I had other very serious problems, so her muffin came to me a little more. And I call myself "what does she look like to me". I began to pass her like a ghost in the corridors, to avoid her. When he said hello to me, I spoke half-heartedly. Abe muffin was me for short. I knew how stupid my demeanor was, but it just came from inside me. And it is a mistake to show myself to a woman who is emotionally vulnerable. When asked if I was angry with her, I said something that everything is OK, that I have other problems, but it is clear that I am angry with her. It's stupid that I've already exposed myself to this attitude and I don't seem to be making the right move. If I go to her and talk to her, I come out weak. We can fix our relationship, but he won't respect me. If I wait for her to ask me again and tell her, it will be stupid. In reality, the boy is not to blame for anything, he is not obliged to pay attention to me. There was nothing between us, just jokes. Abe stupid thing, it just came together and I succumbed to emotions.