Difficulty with Husband...

I caught my husband talking to and sending nudes to another woman. It was the first time he has done it to my knowledge, but I am hurt and feel like I am not enough anymore. He has also been stealing my credit cards and spending what little money I do have on online games, and has taken and pawned expensive designer label purses and sunglasses that I cannot afford to replace due to losing my job. I can't trust him, but I don't want to give up on the relationship, especially if there's even the most remote possibility it's not a permanent thing. Does anyone have any advice on my husband's behavior, and what I can possibly do?