1) Husbands should always be nice. It does not matter who you are, you should always treat people nicely.
2) You are correct
3) You are correct
4) You are correct
5) disagree. Make sure others are happy before you. Then you will be a great friend and everyone will like you resulting in good karma and you are then happy.
6) disagree. again, everyone should be nice to each other, if everyone likes each other, nobody hates each other and nobody wants anyone to have a lower place in the world