So I’ve been dating someone for a month now and we’re “official” or whatever. We met on tinder and after we met he deleted his tinder but then I saw that on his phone the app was installed again. When I asked him about it he said that he shares an Apple ID with his brother so whatever his brother downloads he also gets. But his brother has a girlfriend so when I asked about that he said that his brother and his girlfriend are on it looking for her friends. Should I believe him? I’m really worried. Help. I’ve never been cheated on.

Should I ask him about it again? I don’t want to sound crazy.