Your final paragraph is interesting, why do you ask about selflessness and empathy? These are points that resonated with me and I would be very interested to know how these pertain to feeling like no one cares.
I guess I was querying the OP's empathy towards others because I suppose in part, I think we need to be there for others to expect the same in return. Of course, there are indeed people who give and give, but sadly get nothing in return.
Some people will give selflessly but, I think a lot of us want something back. Unless a person gets something out of hearing other people's problems, I think to be really invested in that person. Interested enough to really take on their pain- as it were- to an extent anyway, I think a friendship probably needs to exist on some level. So- there's give as well as take going on.
I suppose in a way, that's partly why I in fact like this place. I actually don't want to give a person/ friend the burden of worrying about me personally. I feel like the annonymity here allows us to be empathetic in the moment but with less pressure either way to constantly be there for someone or, expect them to constantly be there for us. I suppose it is a lack of care to an extent. Certainly not an obligation to be there.
But then, I've found that to be hurtful in real life. People you hoped- perhaps foolishly expected to be there for you aren't always. And, that can feel so much worse. I try so hard to be grateful in the moment- for what people choose to give now. Of course, the OP could be right of course though. Maybe we aren't always genuine.
Here's good though because, it's an open floor. You can post something and, those who feel up to it can respond.
I'd also suggest that some people 'suffer' from too much empathy. They become overwhelmed with the struggles of others, on top of their own, so thry may simply not have the strength to always respond.
Your reference to co dependency is extremely interesting. It's something I'm mindful of because I expect I could easily latch on (again) to someone who offered a kind word. Which- isn't healthy to either person.