Hurmat-e-Musaaharah

Q: About 7–8 years ago, when I was newly married (around 1 year of marriage), my husband suggested we do arm-wrestling for fun. With his permission, I also did arm-wrestling with his four brothers. At that time, I did not feel any lust or desire from my side at all. 

I noticed that the brothers looked a bit excited, which could have been because they had never held a woman’s hand before but now I am worried. What if they might have felt lust at that time, 1 of them asked for a re match even though I lost from all of them but I said no 1 time is enough now I cannot ask them directly as it would be very embarrassing and it was almost a decade ago. Now I do proper hijab and cover my face too. 

My question is: Does this cause hurmat-e-musaharat, and is my nikah still valid? 

I also suffer from waswas (intrusive doubts) in religious matters, so I want clarity and peace of mind.

Q: Will hurmat e musaharat be established only by verbal communication with one's mother in law?

Q: 

1. If a man touches his maternal grandmother with lust, does the marriage of his mother with his father break? 

2. If a man touches his paternal uncle’s wife (Chacha’s wife) with lust, does his paternal uncle’s marriage break? 

I am dealing with a lot of thoughts about hurmat musahara.

Q: I have committed zina with my fiancé's mother mistakenly. She is my mother’s sister and I repent to Allah and ask forgiveness for my mistake. Nobody knows about this except ﷲ and us . I’m very nervous that if I do nikah with her daughter then the nikah will be valid or not and if I have children with her daughter.

I don’t understand what to do and currently it’s highly impossible to step back for marrying her daughter because if I try to step back there will be a big problem. Please bring out a solution for me. I love my fiancé very much and I can’t leave her. 

Q: What is the ruling of a man (Zaid) marrying a woman (Fatima). In the case where Zaid's father touched Fatima with lust or without, in the past. (Fatima was not in any relationship with the father of Zaid)

Q: What is hurmat-e-musaaharah and what is the ruling about it in detail?

Q: Will hurmate-musaaharat be established between mother and son if the mother is divorced and married to some other person (who is not the father of this son) and the son is not married.

Q: Does hurmat mushaharah become established if a person hugs his father but he has strange feelings in his private part. He was scared during the event and did not get a full erection, however he is not sure about any minor movements that he did not notice. But he thinks that the minor movements (very small movements) were because of nervousness. He did not get any sexual thoughts. He was also a little bit scared during the event.

Q: If a father touches the bare skin of his step daughter with lust in the dark because he thought that it was his wife, but when he finds out that it was his step daughter, he moves away immediately. Will hurmat musaaharah be established?