I'm not going to friends houses who's parents don't agree with my lifestyle choices
Is his life so much different than yours?
He lives in a Christian and peaceful environment and I don't like that.
It is difficult to be somewhere where you don't feel accepted so it is okay not to go there and spend time there. Maybe you can meet with your friend elsewhere.
I didn't want to spend time in a Christian environment but I wanted to spend it with my friend and now my friend has too much shit going on.
I am sorry that you are having to choose between spending time with your friend in a Christian house or spend it elsewhere without your friend. But I can understand that it is difficult to spend it with people that might judge you so do what you feel is right.