Hello and welcome.
You don't say how old you are but speaking as someone who is over 40 now and has had crap relationships/encounters/flings or whatever all for the wrong reasons/co-dependancy etc, I can tell you now that unless I get that warm fuzzy feeling (as you call it) the next time, I am not getting involved!
I learned the hard way to not sell myself short relationship wise. I may be on my own for a long time but at least I know I will be happy. It can be more lonely in a bad relationship than being single.
You may or may not have other issues which you need to explore to help you engage effectively in relationships.....only you can tell that but if it doesn't feel right, then why not just move on?