<human>: There's this girl (18) who's been quite close to me for a while, we've gone out together a few times, hanging out together, etc. She has two male friends, who are disturbingly close with her too, from time to time i complained to her about her friends, and she said "well.. they're just friends, you don't have to worry about it at all.. okay?" well of course i simply said "okay..". But then again, i also got a few female friends, but not that close, one of them is her friend. She also complained about me being too close to her, so of course i stayed away from that girl.
Just now we had an argument since i found out that she went out with her male friends without telling me (we agreed to tell each other everytime we're going out with our own non-mutual friends), so basically she started to make excuses such as telling me there are girls there too besides her. Since we're not a couple or something, i asked a question to her: "Why are you mad at me when i'm being too close to other girls?" then she answered: "Because no girl likes it when their man being too close to other girls." Well that baffles me a lot, either she likes me too, or she's trying to lie to me. 
What do you think, r/relationship_advice?

Can you give me a shortened version of the text?
<bot>: a girl who is quite close to me hanged out with other guys, but makes excuses to prevent me being mad at her.