Do whats best for you and DS. If your not happy then leave. He sounds like he is being pretty shitty right now, and he needs to grow up a little bit more. I would kick my Husbands ass if he ever told me something like that. It is one thing if you have the extra money to spend, but he is being ridiculous. Good lck hun. I hope it works out for you either way.
Just because you and your SO arent together doesnt mean that he wont be in your LO's life. Dont let that thought stop you from finding someone that makes you happy. And me and my BD fought about the exact same thing, as a matter of fact, we got into it pretty bad this morning to the point that I just left because I didnt want to even look at him anymore.
Maybe you guys just need a break. If you have anywhere to go, then go. Get a job. File for CS. He can still be in your kid's life.
<blockquote><b>Quoting Venus Penis Trap.
I'ts way better for the kid to have two HAPPY parents that are separate than to have two that are fighting all the time together.