i have so much love for my son’s father even though we aren’t together. i want so badly to see him…

i have so much love for my son’s father even though we aren’t together. i want so badly to see him do great things because i know he’s capable of so much more than he believes. but he’s made it very clear that i have no place in his life anymore and he’s pushing our son away more and more every day. it breaks my heart. he used to be clean, he had a steady job, he was starting to make something of himself. but now idk, i can’t say for sure but he just doesn’t seem the same anymore. im scared for him, and even more scared for how this is going to affect our son.