My 10 year older brother in law 
commented on my photo via private message on Instagram, I didn’t feel I did something wrong but when reading the messages I can’t help but feel a bit guilty. I showed to my husband who said this is strike 1 so he will see how it develops but he is more worried if my sister gets to see this that she will simply quit my brother in law. What shall I
Of all the things wrong with this, what sticks out to me how he seemed to be offended when you put down your boundaries. I feel sorry for your sister and i would share this with her. If he behaves like this with his own family, it doesn’t bode well outside of it. Yeah, perhaps replying wasn’t the best idea but i cannot put myself in your position vis-a-vis your state of mind at the time but it doesn’t take away the lack of appropriateness of his comments.
What’s wrong with your sister quitting that loser? If you love your sister be honest about it and tell her. Imagine if he is doing it to you, what he does to others who have 0 conection to your sister… Just make sure you tell her in person and explain the situation completely so he does not get to spin the story against you.
