I suspect that, like any normal human, you like connecting with other humans and in particular, you like feeling desired. Which is not a Bad Thing. It’s a nice feeling.
However… based on your language, it seems that you’re so down on yourself that you’re ignoring every red flag because you’d rather be liked than be discerning.
I wish you could stop wondering if a guy likes you and determine if he’s worth your time and effort. This guy sounds like he has more problems – and at 50 – well you can’t love those problems away.
Go do things that you love. Meet some new people. Find your flamboyance of flamingos.