Tauwbah

Q: I have a question regarding the hereafter. I currently know that I made mistakes in my past where I've eavesdropped and seen in other people's houses in the past. I don't ever intend to do it again but I have no idea on how to contact all the people that I have done this to. (It's impossible for me to find some random people). How can I resolve this issue and does Allah forgive major sins on the day of qiyamah and can he forgive my sin on that day when it comes to doing wrong to others like my self. I have a bad feeling that I'm going to get punished indefinitely and I all I want to do is resolve this issue.

Husband telling the wife "It's over"

Q: On the 9th of December my husband told me its over over whatsapp but after that we slept together and told me he didn't mean what he said and then again he told me "I'm done" and again over whatsapp that was on the 3rd of January and then my mum asked him are you and my daughter finished now, so he said yes. Does this mean we are divorced or not?

Husband telling the wife "tala"

Q: I wish to mention that +-10 years ago my wife and myself had an argument  and during that argument she claims that I had verbally mentioned talaq 3 times to her. I did not mention that but said, tala tala tila. Both of us engaged with her family regarding this matter. They accepted and said we can carry on living together. During that time we had a baby girl who is currently 7 years of age, and my eldest then who is now 15. We worked together in building our family, invested in property and together furnished a new home. We also travelled abroad and shared family vacations together. Only until recently due to our current issues the talaaq matter came up for no reason. Kindly revert with feedback if the marriage is valid or not?