I haven't heard that you can't attend the wedding before you get married, but you know it's four months after you get married. In fact, this kind of thing can also be explained as traditional psychology. It's most important not to have a knot in one's heart, especially if you and your boyfriend are bridesmaids and groomsmen. Your boyfriend's friends and couples can still attend your wedding. Just when you come to make a toast, just leave your seat and go to the bathroom to avoid it. Actually, I don't care about this! Even if there is a funeral at my friend's house, I encourage my friend to be happy. After all, weddings and funerals happen to almost everyone, and I care too much. Really, I don't care! I just want to say that everyone around me is happy, and there is no need to mention it in particular (I am afraid that the elders at home care and we newcomers don't care)