You can pay his bond as long as you have not been ordered against doing so...
https://www.inmateaid.com/ask-the-inmate/the-state-put-a-protection-order-on-my-boyfriend-to-protect-me-from-him-and-now-he-is-in-jail-for-violating-it-as-well-as-was-i-for-being-together-i-rsquo-m-out-of-jail-but-he-rsquo-s-not-can-i-pay-his-bond-or-will-i-get-in-trouble#answer
Accepted Answer Date Created: February 27,2023