Is that the seven types of people who will be shaded by Allah will they also go paradise without account?

1. I would like to know the dividing line between hypocrisy and courtesy, because in many cases I feel that there is some two-facedness in people's behaviour and dealings, based on their interests and whims and desires, and it is said that it is just courtesy. Is this true? 

2. Is it possible for true friendship to be mixed with a little hypocrisy? I have a friend who does not love me as I thought she did. She held a special place in my heart that was shared by no one else, but recently I found out that my status with her is zero, and her behaviour with me for many years was superficial. I thought, and everyone was certain about that, that our friendship was strong, and until now I do not know how to end this friendship after finding out what is really going on. 

3. Can the way this friend behaved be regarded as hypocrisy? 

4. What is the punishment for hypocrisy in friendship?

Is it permissible to give charity to non-Muslims if they are in urgent need? Will the person who gives such charity be rewarded?

I don't celebrate Christmas in any way, but my 11 year old daughter loves the beauty of a Christmas tree when decorated. Is it permissible for me to have one in my house throughout the year?