AITA for leaving my bf after a holiday?

Hello,

So me (20f) and my now ex (20m) went away last weekend to Rome for a sort of Valentines trip. I was very excited for this trip yet it couldn't have come at a worse time because a couple of weeks ago we had a massive argument which made me see him different. He literally switched and there was no emotion behind his eyes which scared the fuck out of me - this isn't the first time this has happened either. I became acutely aware of how he could hurt me if he wanted to, he's 10x stronger than me and would be able to over power me.

Whilst we were in Rome I was having panic attack after panic attack. If I'm honest, everything from that weekend is a blur. It felt as if I needed a REALLY strong glasses prescription...nothing was clear and I just couldn't breathe.

Ive brought up these issues with him and he said he'd never hurt me however the thing that concerned me was when he said 'your voice is loud anyway so anyone within a 10 mile radius would be able to hear you screaming for help'..... LIKE HUH?!?!?

I've spoken to my family who support me leaving as they don't want me feeling scared in a relationship but I feel very guilty about it.