Not sharing one's items with roommates

Q: I live in a shared apartment with 5 other men. Is it okay to not share my things with my roommates if they don't care for their own things in use.

For example, they don't wash their blankets and use mine as I try to keep my blanket clean and washed. Should I compromise my health and cleanliness or first take care of my basic needs and then share if I can. Please tell me as I don't want to be greedy in Allah's sight.

Qunoot-e-Naazilah in Fajr Salaah

Q: I follow Hanafi madhab. Since a few days, our Imam is praying dua in fardh of fajr salaah. On the very first occasion he did this dua in the fardh of fajr in the second rakah before going to ruku and from the next day he started doing it after getting up from ruku.

Now with the differnce in these 2 days, is our fardh salaah valid on both occassions? I know about the special prayers to make when in distress if the Islamic world is facing problems but is it allowed in the Hanafi madhab?

Husband preventing wife from talking to her siblings

Q: I'm engaged and soon going to get married to the man I'm engaged with. He does not like my siblings because they have caused me harm in the past and are causing me harm in the present too. If I don't talk to my siblings at all for the sake of my husband, will that be counted as qat-e-ta'alluq? Kindly guide me as I'm in a very serious situation where I have to choose.

Woman wearing a saree

Q:

1. Is it permissible for a Muslim woman to wear a saree in a Muslim country provided that she covers all the parts of her body properly.

2. If her husband wants her to wear a saree and he gets upset if she doesn't do so, will it be permisssible for her to wear it?

3. What is the shar'ee ruling regarding wearing a saree which completely covers each part of the body?