spending time with one's wife

Q: Is it allowed to copulate between husband and wife in the night after the full day of Tuesday in the Hanafi mazhab? Which days or nights are not allowed to do that?

Q: Can you please let me know what is the ruling regarding spending time with each wife. My sister's husband has recently got married to another woman after being in a relationship for many years. He states that having more than wife is a Sunnah but he is totally disregarding the feelings of his first wife and spends most of his time with his new wife. Can you please clarify how he should spend time with each wife. Also I find it hard to accept his reasoning that it is Sunnah. I feel that the word Sunnah is just covering up his wrong doings. Wrong is wrong. Please do not misunderstand me I understand fully the purpose of more than one wife and it being Sunnah. I have no objection to that at all. Loooking forward to your reply.

Q: I wanted to ask something about relationship issues. My husband is very strictly religious and he reads lots of Islamic books through the whole day in his free time. Even at night I tell him to sleep early, at least at 12 o clock in the night but he reads the seerah of prophet Sallallahu Alayhi Wasallam and completes all the amal of zikr which is done under his shaykh. Then he goes to sleep at 3 or 4 am. I sometimes get upset about that. He doesn't give some of his free time to me and if I say anything he says that we must think of the aakhira, not the worldly life. Sometimes I comfort myself that what he's doing is to please Allah, so I don't bother him. But I want to know that what he's doing is it more rewardable than having free time with his wife and sleeping early with his wife?