For some perspective, I never had a solid friend group in my life (only individual friends) so my lack of experience and being neurodivergent makes me not understand some group dynamics
Recently I asked a friend if he wants to go to the cinema to see a movie and he replied me his friend group (from which I only know one person out of like 8 from one time we saw him on the street and I presented myself to him) wanted to go too. I told him they could come with us and I can ask a couple of friends more and he told me its better if he goes to the cinema with them and another time with me (even if its the same film)
I asked why wouldnt we just hangout together even if I dont know them , and he says he personally doesnt mind but it would be uncomfortable for me and them because they dont know me and they will just talk between them.
Honestly I dont get it, he knows my other few friends because I bring him sometimes when we hang out and even if they are not friends betweem them, they talk while we arw together, so why would he do this?
Also, I told him a few times I would like to have more friends, so meeting his could be a good idea. In the end, his friend group were once also strangers to him