Leaving the Musjid with the left foot

Q: Is there any hadith with reference which states it is sunnah to enter the Masjid with the right foot and leave the Masjid with the left foot? If there isn't any hadith which states one should leave the Masjid with the left foot, is it permissible and better to leave the Masjid with the right ​foot if one intends to do something good when leaving the Masjid?

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.