If you had male theory of mind you'd understand that this has nothing to do with you and this guy is just literally at rock bottom. He's having a crisis
Very good question. I guess there's a sense of being afraid of not reciprocating it enough, or not behaving in a way that makes you deserving of it. I get uncomfortable when people do things for me because I'm not sure if I can make up for them
This simply means that you should not be trusted. Do not trust those feelings, matter of fact, do not trust any of your feelings. Understand that for the rest of your life, you will have to rely on rational decisions because you have clear cut evidence that this is the only way