No, no that is not selfishness, I think that it called being human.
It is a normal human need to be connected to other human beings, it is a normal human need to want care and support and friendship and love. When feeling vulnerable, sad, hurt, alone, the human being has a drive for connection and belonging, for attachment and protection. That is not selfishness at all, that is
reality.
You are normal and right to want those things and you are deserving them, it is the circumstances, the actions of others, that screwed everything up and made it all wrong. Maybe it is not a question of 'can I feel that way?' but a statement of "I DO feel this way!"