<human>: I gave him my card so he could go to the store to return a pair of shoes. He returned the shoes and gave me the receipt. We agreed that I am keeping that money on my card and using it for part of his portion of the monthly bills. 

The night before he asked if he could use my credit card to buy a skate board online and he would give me cash (he does not have a bank account or any credit cards because of his bad credit). I told him no, I didn't want to do that because he is currently unemployed, has limited funds and felt like he shouldn't be spending his money on that since he already has a few skateboards that he doesn't use that often. 

I get home from work and look through my emails and see one from my credit card company that says there was a large purchase recently and asked me to review it. Apparently after he returned the shoes, he used my card to purchase a $120 skate board online. I was mad and asked him why he did that after I told him I didn't want to do it the previous night. He just kept saying he will give me the cash for it so he doesn't know what the big deal is. I feel like it would be the same as me taking cash out of his wallet without consent, even if I intended on paying it back. The more I think about it, the more upset I get and want make him cancel the order but I don't want to seem like a bitch. Am I overreacting?

Provide a brief overview of the text.
<bot>: gave my boyfriend my credit card to return something and he also used it to make a $120 purchase without my consent but plans on paying me back.