Yes. Mine did the exact same thing. If I pushed to ask for the person's name or more specifics then I was seen as being "weird" or "jealous."

It's a control thing, I think. The more knowledge you have, the more power you have. They like to keep their SO in the dark, and control what their SO knows.

Mine would also be vague about plans. Like I would ask, "hey, do you want to do this thing tonight/this weekend/next week?" He would never just say, "yes, I'd love to!" "or even just a "No, I'm too tired tonight." It was ALWAYS every single time "maybe" "we'll see" "I dont know."

The last time I tried making plans with him when we were still dating I asked him if he still wanted to go to a party that was happening in 3 hours. When he said "maybe" I said, "maybe??? It's in 3 hours. I want to know now what I'm doing tonight and if you're coming." He just shrugged.

He could never give me definitive answers about anything. Again, I saw it as a control thing. He wanted to control my time and expectations. He didn't want to just say no because that would likely lead me to doing something without him and he didn't want that. Many times he didn't want to say yes because it would benefit me in some way and he didn't like that either. Even if we did something that was his idea he would seem annoyed if I had fun or showed enthusiasm for it. Or else, in another weird twist, he would criticize me for not showing ENOUGH enthusiasm or having fun the 'right' way, the way he wanted me to.