I'm not. But thanks u got he advice

Your nerves are trying to tell you something, just take it really slow, even if its just more of a friendship your trying to pursue with him right now. I think remembering why you broke up in the first place is important, it helps put everything in perspective and will help you to not move to quickly if your looking for more of a romantic relationship eventually.
(Sorry, I'm dumb and forgot to check to see if your single rn before I wrote this, not trying to offend you or anything if you are in a committed relationship hun)