Why am I starting to feel so annoyed with my best male friend?

Am I spending too much time with him? He goes on and on about people from years ago that let him down and he hits on my friend and I and is possessive of us when we try to make new friends, trying to sabotage it for us. I’m starting to get more aware of his faults and more annoyed by them.

Why am I starting to feel so annoyed with my best male friend?
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