FWIW, I am mainly replying to the OP's last paragraph. I have not read all the other posts, just onewayward's replies and thoughts.
Something in me is telling me that I am falling for this guy. And, perhaps, I haven’t been able to really hide that from him either (so hubby tells me), because he has started responding somewhat. Like, he’s started dropping by even when my daughter hasn’t come down to spend the weekend/holidays with us. And he’s been calling me often with some excuse or the other. I must confess, I’ve called him a few times, as well.
I just can’t figure how to handle this. But I don’t want to let go either.
Are you just enjoying your crush? You could just enjoy it quietly, and not say anything to anyone. Nothing to handle. Just let it blow on through, and enjoy the scenery as it goes by.
Are you suffering in your crush? You could choose not to see this guy, not to invite him over, or call him, or take his calls. Give your feelings a chance to die down in "volume" so they are not causing you to suffer.
Are you thinking about starting something with this guy? I do not recommend getting involved with any of your daughter's current dating partners or exes. Ever. The world is big enough to not have to deal in "potentially messy people" like daughter's teacher, boss, minister, ex-BF, current lover, etc. Why make life difficult/awkward for your own kid, and yourself and the potential person? It isn't like there's a people shortage where you live, where you don't have anyone else around to date, right?
However, if you want to pursue this, the simplest course of action is to just ask the daughter how she feels about it and if she will grant her blessing for you to date her ex. And wait to be sure he is her ex.
Before even going there, though, have you stopped to consider the "nutjob factor" risk? That's the biggest "sticky wicket" I see. Even if daughter gives her enthusiastic, cheerful "Go Mom!" blessing, maybe this guy wants to fuck the set and then move on to the next set -- leaving chaos in his wake. There are people like that, who want to "collect the set" of cousins, sisters, moms, daughters, whatever. (I apologize for this being crass sounding. I cannot remember the name of that particular fetish. )
Maybe he goes nutjob on all of you, leaving chaos in his wake in a different way. Can you, your daughter, husband, and son deal with it and the aftermath? This isn't just being "outed" as a swinger or poly person and dealing with that.
If you and the guy become dating partners/lovers, and he goes wacko, then he's a guy who has been with you
and your daughter, and can use that against you. You could just
prevent it by not even giving him that particular weapon to ding all your family with, to begin with.
Do not put yourself in a spot where he can turn on you and go:
- Said to you --- "Do this, or else I'll tell your daughter about us! I will tell everyone about us!"
- Said to your husband, son, or daughter -- "I know something about Mom. It is this. And further, do this, or I will tell everyone about us!"
Blackmail is not pretty. There's a skewed power exchange here... not the fun bedroom kind of power exchange of BDSM kinks.
It isn't just the power exchange shift between mother/daughter relationships, when you are an adult, and she's just crossing over into adulthood, to become your peer, and no longer your dependent. That's a sticky wicket all on its own, as part of "general growing up."
This is the power exchange between the potential guy and you and your family members. What kind of power over you and your family could he misuse to cause trouble in your lives, like social problems, problems at work, mental stress/strain problems? Maybe it's cool now. But how can you know that he won't stab you in the back with it in the future? It is very risky because you just cannot know.
To me, the emotional risks and price tag are much too great to pay, both in relationship with the daughter and in relationship to the rest of your world if the guy goes nuts on you. Any dating partner could go nuts on you, but it doesn't have to be
magnified by being a nut who's been with both mom and daughter. That's a whole other level of mess.
So I'm hoping you choose to just enjoy your crush thing quietly, without telling anyone, and let it fade naturally. Smaller cookies for you, but infinitely more digestible!
If you had to turn to a forum to wonder and think it out, that could be telling you something. In decision making, to me a solid joyful "YES!!" is a solid YES. Any "maybe" or "no" is a not a joyful resounding "yes." It's better to err on the side of caution and
only accept "YES" as "Yes." Anything less, no matter how you slice it, is just not a "yes."
Some choices in life are not "win or lose" but "Which choice stinks least?" In this case "not getting to date him" stinks less than "date him and risk all the mess," imo.
You are always free to choose things in your own life. You don't have to take on board strangers' feedback. But remember you are not free of the consequences of your choices. Choose carefully.
Galagirl