You Haven’t Met His Friends & Family
Every relationship is different and what’s a good time for you to meet his parents and friends might not be a good time for him. Be understanding of that. But if you’re going on six months to a year and he’s met pretty much met all of your extended family and you haven’t met any of his, that’s a red flag. It sounds like he’s not as serious about the relationship as you are and you should definitely ask him about that!