feeling shunned during Jumah Prayer at the masjed

as salam alikum sisters 

I am having a hard time wrapping my head around how some sisters act during Jumah prayer at the masjed I feel left out when I went in to pray I walked past a bunch of sisters sitting in the hall way and I gave them salams but they didn’t answer back , I don’t feel like I fit any anywhere it seems like they have formed cliques and secret clubs