Brother in law stopped talking to me

So for the longest time now I've grown close to my brother in law. He always invites me everywhere he goes with my sister..well did however, until recently he suddenly stopped talking to me. At first I thought he was just having a bad day but this is the second time I see him and he doesn't say hi or bye. I honestly don't know what I did wrong. The only conclusion I could come up with is that I lagged on this trip I got invited to but whatsoever I don't know what to do... I want to start a conversation but I'm too scared for some reason

Hi there, Don't be scared. Approach to him and start a conversation. What's the worst that can happen? That he keeps his mouth shut and doesn't reply back? You would be at the same place you're right now. If that doesn't work, you may want to try writing a letter and giving it to him. If something happened, you need to know. You won't have a lot of time to talk if he's that mad at you, so get straight to the point. I hope this helps you. Take care.

I am sorry to hear of your problem with your brother in law. Hopefully it is only temporary. It is very common and to be expected that you would be anxious to confront someone you think is mad at you. However, you need to resolve the issue if you wish to restore the relationship. The previous post has a good idea to write a letter if it is hard to strike up a conversation. The potential problem with this is that he may not read it or choose not to respond. It still may be worth a try. Another thought is to approach your sister. She may be behind the silent treatment. If she felt threatened regardless of your and your brother in law's intent, she may have asked him to "cool it" for a while. Depending on your relationship with your sister, that may be an easy resolution to the conflict by clearly stating your intent and relationship with her husband. If, however, there is more to this relationship than you planned or even recognize, then an intimate conversation with you sister is no longer optional. It will be required. I hope all comes to an appropriate reconciliation. Please keep us posted.