Friendship for me si something that I really treasure. I treat it as something sacred because being friends with someone for me means that I trust him 100%. You should never make friends with someone whom you don't trust 100%. It's either 0% or 100%, there's no middle.

Why am I saying this? Because in order to make friends, the very first thing that you need to build is trust. Then when you're done with that, everything else will follow. Nothing else hurts more than losing a friend because of lack of trust or when a friend betrays you.