AITAH for breaking up with my boyfriend because he kept taking "tips" from another girl?

I (23F) was dating my now-ex for a little over a year. Things were good at first.. we communicated well, we had similar humor, and I honestly thought we were building something long-term.

About 4 months ago, he became friends with this girl from his gym. I didn’t think anything of it at first. I’m not the jealous type, and I’ve never had a problem with my partner having female friends.

But over time, she started popping up everywhere. She’d constantly be giving him advice.. little things at first like “you should change your hairstyle” or “that shirt doesn’t flatter you.” Then it turned into deeper things like “you should stand up to your boss more” or “you shouldn’t let people walk over you.” Stuff I had been telling him for months, if not longer.

The weird part was he actually listened to her. More than he ever listened to me. If I gave him the same advice, it was “nagging” or “overthinking.” But when she said it? Suddenly she was “helpful,” “insightful,” and “just trying to make him a better person.”

I mentioned it a few times, calmly, and he always brushed it off like I was being dramatic. He’d say she was “just friendly” and that I was “making something out of nothing.”

Then one night, we were out with some friends and he brought her up again.. complimenting her advice, talking about how “refreshing” her perspective was. I made a joke like, “Maybe you should date her then,” and instead of reassuring me, he got defensive and said, “Why are you comparing yourself to her? You’re not similar.”

That did it for me. If your partner makes you feel like you’re competing for a spot in his life, you’ve already lost.

The next day I told him I was done. No drama, no yelling. Just… done. He acted shocked and said I was “throwing away a good relationship over insecurity,” but honestly? I’ve never felt more secure than when I walked away.

Now I’m getting mixed reactions. Some friends say I made the right call. Others say I overreacted and should’ve given him an ultimatum. I don’t know. I just felt like I was slowly being replaced, even if he didn’t physically cheat.

So… AITAH?