Yes, I think this is your Rebound R. Yes - you need to end it now - you know it has no future.
You seem convinced you need to try harder because your friends like her. You've mentioned this more than once. And they have spent how much time with her? Like maybe an hour or 2 at most?
That woman sounds like someone to RUN from and never look back.
Most people are a bit "clingy" or a bit desperate Post D. Everything we've known and been comfortable is gone. And dating after 40 is a whole new ballgame. But that doesn't mean you need to sell your soul to the first person who seems to like you. She is likely coming from a needy place. Is that what you want? Or a "together" person. Someone who is with you because of who you are - not just because they want "someone".
Anyway - set your goals higher and I'll bet you'll find someone that you really ARE into.
Personally - I'd cancel tonight and call it quits.
