Am I wrong for encouraging my boyfriend to find a new job before he quits his current job? He seems to think I am...

I didn't think it was anything out of the ordinary. I mean, it's common sense that you should find a job before you leave one. Last time he quit his job without a back up plan he was out of work for over a month. However, he seems to get upset thinking that all I care about is money and he likes to point out the fact that my job is unstable where sometimes I make money and other times I don't so in his mind he thinks I shouldn't be allowed to talk to him about finding a job( in general I make a lot less money than he does right now and things would be hard on both of us- mostly him- if he suddenly doesn't have an income), when really I don't want him to have trouble paying bills and end up losing the house or something (we live together part time). Plus I know it was bad for his mental and physical health when he stayed at home doing nothing but playing video games for a month straight with his grandmother having to support him. I don't want to be naggy or mother him, but I think it's a bad idea for him to just risk the chance of quitting and then not being able to find a new job. Am I wrong?