I'm very 1-1 too. I go for walks with my husband, but I don't like group walks as much either. Apart from anything, they're so slow! People so busy yacking, they keep stopping. It's quite annoying.
That's my assessment of the local countryside group and the church group, anyway. The Ramblers, are better, so I hear, but I've never joined.
I've always been very 1-1, and tried to go to groups to make friends at one point, but it never really worked. I never connected with anyone, and felt like a bit of a Billy no mates. And it was a lot of effort.
I'd almost given up, and was just going to these things to get out of the house, and then came Covid.