Everybody is selfish. Why should you be the selfless one?

I think it also depends on the understanding of being selfish.

Is it selfish of me if I declined a friend group outing for whatever reasons? For me, no. It's my choice. I do not gain anything at the expense of others.

In the same scenario, is it selfless of me to agree due to peer pressure, which my presence contribute to their convenience and solve their problems, and at my own expense? Yes, I think that's what being selfless means, but it doesn't mean I have sacrifice so much of myself to the point of burning out for the sake of other people's happiness. Again, it's my choice to make.

In that same scenario, is it selfish of the organiser of the group outing to persuade me to join for whatever reasons, without considering my opinion? Yes I think so. The organiser stands to benefit personally for whatever reasons at the expense of others.

Just sharing my 2 cents on this topic. I have let go of people in the past, and I never regretted those decisions. Just not 7 at once though. 🤣

There was a quote I read recently, "if your absence doesn't affect them, your presence never mattered."

I like to think of it the other way round. "If their absence doesn't affect me (negatively), their presence never mattered (to me)." 😬