This is not true.

Kufr happens when a person rejects Allah’s command or doesn’t believe that it is from Allah.

Allah says: “Jihâd (holy fighting in Allâh’s Cause) is ordained for you (Muslims) though you dislike it, and it may be that you dislike a thing which is good for you and that you like a thing which is bad for you. Allâh knows but you do not know.” 2:216

Therefore, it is OK for a woman to dislike her husband taking a second wife as this is only natural. She is not allowed however to do things that don’t please Allah.

In situations when we feel some discomfort in our hearts would that make us “kaafir” or a un-believer, for example if our husbands may remarry?

Sins | March 18, 2014 10:36 am
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My question is about cups with gold and silver color decoration and patterns, I don’t know if it is real gold/silver or just color. Is it permissible to keep them? How about glasses which are gold plated?Which is the best way to get rid of them? When my parents purchased them they didn’t know about the interdiction of eating out of gold made plates, are they sinful?