the only time I had a problem with whether my alters would be talking with my friends was after I was diagnosed. then my therapist explained to me getting the diagnosis doesnt change anything. everything that is going to happen has already been happening since the very first alter creation or as some people call it dissociation to the extreme of alters coming into being, that meant that even before I knew of their existence and diagnosis of DID in me the alters were already talking with my friends. example Rainy was already talking to my best friend franny way back when I was 4 yrs old. Thelma was already talking to another one of my best friends chris when I was 16. I did not know I was DID until I was in my first year of college when I got diagnosed with DID.

my suggestion is not to worry so much about whether your alters are going to talk to your friends now after you and your friends know they are there. if your alters are capable of talking with your friends they have already been doing so for many years.

another suggestion is talk with your treatment providers, they will tell you whether its possible for your alters to talk with your friends and you know all the behind the scenes elements of what goes into this kind of thing, like sense of agency, dissociation and more.