can you go inside yourself see who's in there understand that someone is in there and ask yourself is that someone who you want them to be?
do you know who you are? not just what you like or who you know but everything that makes you you?
you don't. you can't. nobody can.
so don't try to change him you can't change him and if you don't if you don't love that someone then please, let somebody love that someone or he will rot and die and so will you