*long post alert*
I wanted to post this on the original thread. Looks like I didn’t. Teen girls can be really funny. Even when they don’t mean to be. I can understand that you’re very hurt but (this will sound odd, it is) don’t take it as a reflection of you.
Imagine working at the end of the assembly line in a factory. You know what happens before the product gets to you, but you don’t actually watch it happen. One day when it gets to you, you see that the product isn’t coming to you the way it should be. Of course you wouldn’t check your area for any problems, because thats the way its coming to you. If she’s like many teenagers (?) its a stage she’s going through that she’ll hopefully grow out of with time. (I’m not saying theres something with your niece, c’v)
I reread the OP on the original thread, and something bothered me. You seem to define yourself as “maybe its because of my advanced age and also my single status that you find troubling”, rather than it possibly being a factor. First and foremost, you are a person and theres no reason to lower yourself. Sorry for the mussar shmooze.
As hard as it may be, IMO, wait for her to make the first move. Pushing will only cause resentment.
Hope you have a quiet bus ride this time. 🙂
Hatzlacha