Hellp

When me and my bf just started dating he followed my best friend on Instagram but she didn’t follow him back because like she wasn’t gonna do that? And I didn’t bring anything up to him but a few days later he said he followed the girl on my Instagram cause his friend thought she was cute but what??? Then why wouldn’t ur friend just follow her? Idk I’m really over it cause we’ve been dating for a year and a half now and I trust him but I want him to meet all my friends but I’m kinda insecure with him meeting her 🥺cause she is prettier then me like I’m not worried about her doing anything cause she would never do that me me she’s like my sister but I’m just worried that he is the one that found her attractive what do y’all think?