Hello so me and my fiancée have been together now for like about 1 year and a half. When we were boyfriend and girlfriend I found out that he was texting one of his exes sisters and not in a friendly way but flirtatious way. So I asked him to block her. Turns out that when I go search something on Instagram I get curious and turns out he has added her again on social media. Do you guys think this is ok because surely I don’t have any of my exes or exes family on social media?