Plucking eyebrows

Q: I know that plucking eyebrows is haram in Islam; our Nabi (sallallahu alaihi wasallam) has cursed the women to pluck eyebrows. Alhamdulillah, I have never done my eyebrows despite going college/university because I don't want Allah Ta'ala to be angry with me. However I was thinking when we get married, on the wedding day, is it ok to pluck the eyebrows only for that one day? Would that still be sinful? We're not going to do a big wedding, just a little one - according to Sunnah so nobody comes, would that be ok? I know Allah is still watching but is it permissible only for that one day?

Incontinence problem

Q: I'm a male and I have a medical problem of urethral discharge incontinence. I can't afford to buy diapers everytime and also there is not too much of leakage, only small amounts. I keep a tissue paper in my underwear to prevent it from soiling. But it always keeps moving from it's place. I tried wrapping around my penis but still it unwraps and moves away. So, everytime when I'm going to toilet, I change my underwear also. Nowadays, I am changing 6-7 underwear per day, which is very very difficult. Please tell me any other suggestion, so that I don't have to change my underwear everytime when I go to the toilet.

Concealing one's past sins

Q: I was in a friendship with Mr. X and was committed with him for many years and now I am engaged to him Masha Allah. Our relationship is very pious and respectaable. We never touched each other. A year before my engagement with my friend Mr. X, my affair started with Mr. Z and I had a physical relationship but there was no penetration. I was cheating on my friend Mr. X. Finally I realized my mistake and now I have left Mr. Z.... My fiance, Mr. X got this information from different people about my past affair and asked me but I refused to accept it. I repent for my sin daily but I don't want to hurt my fiance nor do I want to cheat on him. One thing is for sure that he will not leave me even after I accept my sin in front of him but I don't want to hurt him for his whole life.

What should I do now? Should I tell him truth before marrying him? I don't have courage to face him

Secondly, will Allah forgive me ? Is there any kaffara of my sin? My marriage is planned after 3 months. 

Bequest of a non-Muslim

Q: I would like to know the ruling on wills from non-Muslim parents. I understand that one cannot recieve any money or possessions stipulated in the wills of non-Muslim parents unless it is less than 1/3, but if the will stipulated that the living parent gives the money or possessions throughout the life until it is paid is that permissible?