<human>: Before you read I'm from South America and my English is not perfect, sorry

I have been going to school in US, and I met this guy but he has a girlfriend. We are friends at school for about 6 months now, and I've talk to him a lot through texting too. I've told him that I like him and asked if he would consider to date me, and he said he isn't interested. I think he might like me back, but maybe because he has a girlfriend is why he doesn't want to. I am not going to pursue him because I know he isn't single, but I ran into him at a mall and he was with his girlfriend, and he introduced us and she said something like "Oh this is the girl who likes you?" And she look at me in a really rude way and I felt really intimidated by her, I said what are you talking about, and she said "You've told him you want to date him" and I never even said that I said that I like him but I understand he has a girlfriend. I said sorry if you misunderstood to her, and now I feel awkward talking to him. I feel she's really defensive and thinks like that he is hers. But he is my friend and I think she's overreacting. What should I do?

Summarize the given text in a few sentences.
<bot>: I like a guy but he has a girlfriend, she is angry at me and thinks I'm trying to take him?