Honey, one of his relatives always sends me messages with strange numbers, says something ambiguous, and then changes his number when he is blacked out. What should I do? Should I tell my husband?

Now that you have confirmed that your husband's relatives are harassing you, you should make it clear to him first. If you are harassed like this again, you should tell your husband to handle this matter together, including calling the police and so on. If he doesn't listen to advice and continues to harass, then you can only tell your husband to avoid being unclear for a long time. You can keep the evidence that this relative harassed you and show it to your husband, or you can use it as evidence that he harassed you.