Fantasizing about other women

Q: I am married to my cousin (mother's side) 6 years ago.This was a pure arranged marriage and neither of us had any likeness apart from the fact that we were cousins before marriage. We both try to make salaah on time and we take care of each other as well.

My question is that what does Islam say if a husband has no physical attraction towards his wife despite so much efforts to feel attracted to her but still no feelings. During intercourse he only gets aroused sexually by imaging other women. Otherwise its not possible for him to get arouse sexually.

Kindly guide me what to do as this is killing me from inside. I don't know how long I can live like this. Besides this we have no arguments and no fights. She takes good care of me and I do the same, but it's only this one thing and it's happening for more than 5 years. What should I do? 

Bleeding after a miscarriage

Q: I am confused whether my bleeding is istidah or posnatal. I had an eptopic pregnancy at 11 weeks. My treatment for eptopic pregnancy involved a D and C and an special injection to terminate the eptopic pregnancy. Since the treatment I have been on heavy bleeding for almost 5 weeks and now on my 6th week I am still getting brown discharge. My doctor said the bleeding lasted so long because of the injection and she also said that though this is not a postnatal bleeding, she recommended me to wait for 6 weeks until I start praying. Now that I am at the end of my sixth week, I am still having the brown discharge after the 5 week long heavy bleeding. Should I start praying or not? Please advise.

Gifts received before nikaah

Q:

1. I have married my husband with the intention of fulfilling my needs and after it to get a divorce from him. But now Alhamdulillah I realized that it’s very wrong and now I love him and want to be with him. So is our marriage valid?

2. Before marriage we did many things but not intercourse. So should I only repent to Allah?

3. Before marriage he gave me gifts like dresses, laptop, etc which I’m still using. So will it be permissible to use it now?

4. Few months ago he once said that you are divorced thrice but few minutes later he said it was due to anger. It’s been 2 years now but we still cannot do intercourse because I fear a lot. So is our marriage valid?