Am I Over-reacting!?

Ok, so, my husband and I have been separated for a week now. We separated last Friday, seen him Saturday for him to come back and pick up some more of his stuff. Well, didn't hear ANYTHING from him until 2 days ago, Wednesday. He asked me for money. No, "hello, how are you doing" or anything like that. Just flat out asks me for some money. Then I seen him yesterday, he came by and picked up a receipt for some things he had bought at Game Stop. He was going to take some things back so he could get some money. Then, he texted me later on yesterday and said he was putting 30 dollars in the checking account to transfer to Pay Pal to supposedly buy some "art" from someone. No, "hey this is all I can spare right now to go towards the bills." It has dawned on me that he doesn't care about me at all. How is this supposed to make a person feel? It makes me wonder if he has EVER cared about me or has only been using me this whole time we have been together. It's so not fair! All I've ever done was love him, taken care of him, given him everything he wants, and given him everything he needs. I'd drop anything in the world for him to tend to him and his needs. And for what?? Heartache and pain!? Am I over-reacting?