My ex flew over to London to see me!!

I broke up with him January. He was kinda emotionally abusive, like he'd tell me my flaws and ignore me sometimes for example. He made a few fake accounts to try talk to me up until March when he gave up and said 'never talk to me again bitch'. And on my 18th birthday (Thursday) he messaged me saying 'baby I'm in London. Let's meet'. I went on a rant saying no, he said he thought id be happy, he came all this way and saw a future with us and he can't forgive me for this etc. Then I said we can meet up to get closure but then sent another message 2 minutes after saying no actually, I don't want to. He hasn't replied after I said that 12 hours ago. I feel so bad!! Should I go back to him? It's a lot for him to come down but I had a panic attack on my birthday night because it reminded me of the hurt ive been through because of him.