It wasn’t supposed to end with a breakup, what happened?

Me and my boyfriend were dating 5 months, it was our first relationship after being single a year. Everything was going amazing, he was kind and patient, he was foreshadowing marriage and kids since the beginning. But we only had 3 arguments they were all about other women, to me petty arguments either about social media or real life. I developed an insecurity, and decided to talk to him about it since I had caught him staring at a half naked woman on a jog while he was with me.

He didn’t receive it well. He ran to his parents house and ignored me for hours. When I called him he screamed at me, threatened to break with me, told me “he’s a guy and what do I expect” ( which he then took back) he ended up saying sorry and the conversation ended well but then I confronted him about his threats to break up.

Threatening to breakup anytime we had a disagreement he didn’t like being called out on anything he just wanted harmony 2/47 365. He was unwilling to have uncomfortable conversations he said he “couldn’t handle it” and opted to breakup instead of listening to anything I said. I’m heartbroken because for me it was only an opportunity to set boundaries and grow together. I just wanted to talk about it.

I don’t think I want to be with a person who dosen’t know how to have effective conflict resolution and makes me feel insecure. But still it hurts, I genuinely loved this person very much and I believe he loved me, but why was it so easy for him to let me go when he didn’t get his way?

I already know I can do better, I thought he was the one after I had waited so long to find someone, he instantly let me go. I refused to be manipulated/ threatened that shows me inconsistency I agreed yes we should end things.
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10 mo
Did I dodge a bullet?
It wasn’t supposed to end with a breakup, what happened?
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