Why is my gay friend often jealous?

I'm a woman and had a best gay friend who I always go out with for about 7 years when suddenly I began to have a love life. When I did, he wasn't affected at first but when he noticed that I was on my cellphone most of the time and every once in a while vents out to him about the guy, he grew cold and told me harsh things like saying he'll speak to me a year later. He was really upset and cold back then.

He didn't even tell me why he got mad but only told our common friends that it looks like my "boyfriend" is an attention seeker and is always asking for my time. He was hurt because I had not much time but in my defense I was in love and usually he should be more understanding. He also said I treated him like a trash bag when i shared my problems about the guy to him but isn't that what friends are for?

Ever since then, he downgraded me to an acquaintance and has placed boundaries. We seldom talk now but when we recently reconnected, he was still the same. He noticed I was texting someone else while my eyes were hurt and he was like, who are you texting? I didn't respond.

After that, it seems like he was avoiding me again. It's crazy.

Why is my gay friend often jealous?
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