Girl's Behavior

Am I wrong and just being insecure?

I have been friends with her for about two years now and we talk all the the time or at least once a week. I ended up catching feelings for her and for awhile now every time she talks to a new guy she disappears and acts differently but I didn’t like it so I gave myself distance and she would get mad if I leave some text from her unanswered and because she lies to me a lot about talking to other guys I told her I don’t feel comfortable so when she talks to a guy I asked her to just be honest so I can give myself distance but she said it’s none of my business and I understand that completely. I have never told her not to be friends with someone or she can’t talk to them and I never will I saw me asking to let me know as a boundary thing to protect myself from becoming a jealous person and to try and make it work. So the other day she thought I was mad at her because I was busy and didn’t text her back so I went to talk to her and she was with a guy she just met for only a few days and they talk every night I didn’t like how she was acting around him I got the vibe I wasn’t supposed to be there so I didn’t say anything and walked away. She got mad the other day and said she’s not into him but when I wanted to talk about everything and tell her about how I felt she lied and said she’s going to bed and that she’s upset but it turns out she lied and was on the phone with that guy so I had enough of the lies and bs I ended the friendship because the one time I wanted to talk everything out she wasn’t there. Am I wrong and just jealous I saw it as I can’t trust her and didn’t like the situation and left I know it’s partly my fault.

Am I wrong and just being insecure?
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