Does your MIL expect you to do all the cooking and cleaning and get upset when your husband is doing a chore instead of you? Op mentioned this in a comment. It may explain a bit why the wife doesn’t want MIL to see the house messy.
I personally would be totally comfortable braless in front or in-laws only if I had a good relationship with them.
No, you're cheating. Not physically, but it's emotional cheating, and for me at least that's way worse. Break up, or try to correct your behavior and call it off with the other dude.
You've never met in person?
Does your MIL expect you to do all the cooking and cleaning and get upset when your husband is doing a chore instead of you? Op mentioned this in a comment. It may explain a bit why the wife doesn’t want MIL to see the house messy.
I personally would be totally comfortable braless in front or in-laws only if I had a good relationship with them.
Do nothing. She blocked you because you declared your feelings and she didn’t reciprocate and that panicked her into blocking you.
If she wanted to talk to you she would.
Don’t create accounts to harass her.
No, you're cheating. Not physically, but it's emotional cheating, and for me at least that's way worse. Break up, or try to correct your behavior and call it off with the other dude.