Am I dumb for being mad about this?

My boyfriend was on Facebook and he was on a girls status asking about a job at Walmart because she works at Walmart and he said can you get me a job up there and she was saying how she heard about him (at the same Walmart because he use to work there but got fired years ago) and he said what you hear? And she said I heard everybody loved you up here (females) and he said well now I have to come back and mess with you now he was referring to the girl he status he commented on. And still asking to get him back up there. And I’m thinking why would you put yourself in that situation when you have a girlfriend. Girls all on you now you feel like you really want to go back to Walmart. He works a pastime job barely making 20 hours a week. Bills all on me because we live together and I can’t put him out because his name is on the lease as well. I just feel like that was so disrespectful and when I brought it up to him he blocked me on Facebook soon as I told him.