Can I do this

I am not comfortable co signing on my boyfriends bond and paying 1,000. He is counting on me to get him out, and of course I want him out and I know he sick of bein in there. I just wondered if when I talk to him if I can tell him that they ran my credit and didn’t approve of me to sign the payment plan. My credit isn’t shot but not the best because I just got over having 10,000 in credit card debt a couple months ago.