It's really strange. I want intimacy, but I also want to be alone and I feel as though it's too risky to assume anything will last forever and that true love actually doesn't exist. I feel in some sense I'm content with building and maintaining platonic relationships, but I'm concerned that I no longer want to get 'that' close to anyone anymore. I can't tell if something is wrong me, but I find it nearly impossible to love someone anymore and I fear I've developed some trust issues that I can't fix. Is it true that humans are inherently selfish and we only do something out of some implicit need and that selfless altruism doesn't exist?