You wrote: "He feels like I’m not being supportive in what he wants to do. I love him but I’m not okay with any of this. I don’t know how to react. I feel overwhelmed and I’m still trying to process how I’m feeling. In the end I just feel very, very hurt. I’m looking for an outside perspective. I feel lost."

If you are working -- even part time, you are indeed being supportive. Support isn't just emotional, it is financial, too, when it comes to partnerships. He did a stinkin' thing and he did it like he did because he knew you were't going to be cool with it.

Now you'll have to decide to suck it up and live more cheaply in the short term until he starts bringing in more money; leave him and try to live on your own; or you yourself bring in more money. As for the emotional end of the support issue, he needs to own up and apologize for the under-handed way he did things and promise not to do something like that again--with the understanding that you'll leave him if he does. Unless you always want to be the one carrying the relationship--that's your choice.

One more thing--financial sacrifices should be his to make, too; no lattes for him if you are drinking water you draw from the tap. Too often people who do what he did are selfish in other ways too.