Uncertainty in Relationship

I'm not sure what's going on right now and what my boyfriend is thinking. Basically, two weeks ago we had a long talk that he was a bit upset that when he brings me to his friends, I don't talk/socialise as much, but he said it in a nice way that he wants me to be more 'out there'. I haven't seen him since because he's been away but he's also been texting less. I say him yesterday and we talked about it again and he said he's been thinking about what we discussed and said that if I can't be more social (I can but sometimes I get awkward/nervous because all his friends are so nice to me and I'm scared to mess it up sometimes so I sometimes avoid talking) he said he 'doesn't know' anymore because his friends are really important to him as well and he didn't have a lot in secondary school. He also said he doesn't like how this relationship is progressing because it feels quite 'new' when it's been 5 months in and this is the first time we have had this conversation before and we don't usually have deep conversations. He said he thinks its because we only get to see each other 2-3 times a week which is not too often because of the distance between us and he says he 'doesn't know' about that. I said I understand and will try to be more social, and I asked if he wanted to continue the relationship because he kept saying he 'doesn't know' and stuff, he's also become less touchy but still kisses me goodbye and cuddles me. He said he doesn't want to think about breaking up and want to continue the relationship. I'm not sure what's going on, is he losing interest or something?