I don't get boys

I just don't get boys. They are an odd sort. Though I am sure that they think the same about us, and I don't blame them. I just don't understand the need to be friends and then if it doesn't work out, because it never was going to, they drop you. But the thing is, I thought we were good at being friends. Niether of us had interest to go any further than that. Now he's engaged and I get the cold shoulder. Mind you it's not a huge loss but I don't get it. I am really happy for him. It's not like we even hung out all that much. Just confusing. Again, not so upset that we aren't friends but why? It's more confusing than anything else.