Re: is this worth continuing?
Tbh you've already answer your own question: you're dating other women and having the time of your life so don't compromise it for one "tail". Unless she has some elixir to life that the other girls you're dating don't have you shouldn't be fretting over her so much. Another thing I've started to realize (my personal opinion): if you have to ask other people if it's worth continuing then your subconscious mind has already decided that she's not worth chasing but your rational mind( conscious) doesn't want to let her go and wants other opinion to rataionalize what your conscious wants.
You lose some you win some, learn from your mistakes and get better!