Does my crush like me back?

We have known each other for about 6 months now. He does not being vulnerable much, but I have been slowly seeing sides of him as time passes. He does not really tell me much about his life, if I ask questions about it he sometimes gives me one worded answers or he seems uninterested, although he has asked me what I am doing during the day and questions why I have time off from work (He knows my work days off heart) and has asked general questions (e. g. colour, movies I like etc.). We have brief texts about 3 times a week, if I am hanging out with friends he will join us and talk to me between then. He also invites me to play games with him occassionally, maybe once a fortnight. He always teases me and messes with me in games and in person too, we match each others wit.

I have made some advances in the past, like telling him to DM more if he wants to ask more personal questions. He seems to be very untrusting with his vulnerability though I have noticed he is slowly opening up, he is letting his ego down a bit and showing humility.

I do like him, but I am discouraged by him pushing me away when I cross a line that might cause him to be vulnerable with me. He does also call me a grandma and other nicknames and tells me goodnight when I go to sleep after gaming with him.

Does he seem to like me back more romantically or not? Should I keep going with him or let him make the moves?
Does my crush like me back?
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