do people that hang them selves eva think who it hurts

why do people hang themselves dont they eva think they are just being plan selfish to the people that really do love them cause they may think people dont love them but there will always be some one that loves them for being them and thats just the way thing are, every one has some one that truely loves them like gf/bf, family and/or friends so just think about things before you do it and think hard bout it and think about the people who might love you and what it will do to them