Hello bambi86w, welcome to Psych Central,

I'm sorry to hear about your relationship. Has he always been like this? It could be that there is an underlying mental health issue going on with your boyfriend. If he is intelligent and unable to hold down a job, he probably does not feel too good about that. I don't think there are any excuses for lying and cheating but his lack of communication and lack of feelings could be due to depression. Link here on depression Depression Symptoms, Information and Treatment - Psych Central

I don't know if you are able to sit down with him and ask how he is feeling and if he opens up to you, it might be an idea to see if he will go to his doctor for treatment.