Status of the marriage if one member is involved in constant zina

Q: I wanted to ask if there is a lady and she has a husband who has had an affair which she recently discovered was also physical in nature for 2 years or so with a married woman, is the nikaah nullified for the wife?

As this husband continues to commit adultery and simultaneously have relationship with the wife? If the marriage is not nullified, what dua should one make for reconciliation after such deceit?

Mandatory travel insurance on Hajj and Umrah packages

Q: Please can you advise on the verdict regarding travel insurance. We understand all forms of insurance are not permissible, however I did notice that on the Hajj and Umrah packages there is mandatory travel insurance. Please can you advise what is to be done in this situation?

On the same subject, is it permissible to hire a car? There is also an insurance clause in the fine print of the agreement that needs to be signed before hiring.

If there are alternatives to the above that Ulama and others use when going for hajj/umrah please also let me know what these are.

Selling a share in a property at a higher price

Q: I had 2 clients, client A, who wished to buy a property. The client had an agreement with the seller to purchase a property being sold for R900 000. Client A wanted to get bank finance for the shortfall on the purchase price. We advised against it. We spoke to client B, who had R100 000 to invest. We brought both the parties together. Client B agreed to buy 1/9 of the property. Within a month client B agreed to sell his share at R120 000, an agreed of repayment was made and met.

Is the transaction a valid shariah agreement.

Woman feeling that her colleague at work is jealous of her

Q: I have a friend at work who is friends with another colleague that is extremely jealous of me and is always putting nazr on me, I've read duas for protection especially when around that person but found it best to also stay away. I tried speaking to my friend and she feels as a Muslim she cannot abandon another Muslim even if they are not good company and she likes being around that person because of the things that person spoils my friend with.

Is it wrong Islamically for me to disassociate myself from my friend because of this?