Sleeping with someone else BUT we weren’t together

So about two weeks ago my significant other and I broke up (I wanted a break and he didn’t believe in that so we ended things). We did the whole give our stuff back and I never thought I would see him again. A week later I went to the bar and I met someone else (I didn’t go home with him that night). We’ve been talking and we hooked up a few days later...

Now... my boyfriend and I were OFFICIALLY BROKEN UP still. But he was texting me that he loves me and missed me etc...

He came over unexpectedly to drop off a few last things a few days ago and we ended up talking about everything ( I told him I only kissed this guy at the bar (still true)) and while he was extremely upset, he understood we were not together so it wasn’t cheating.

We’ve been talking about getting back together but I’ve still told him I need time to think about things, and to better myself as I felt the relationship was a lot at the time. However, at the same time I like where things are going with the guy I met at the bar.

So now I’m confused as to what to do!! I still completely love my ex and talking things through the other day was very eye opening (we could never talk beforehand), plus our breakup was very sudden and over a lot of dumb shit BUT Im also torn about finding myself and exploring things with the guy from the bar!

Anyway... I’m open to advice and opinions!

Thanks :)