I don't know all your boyfriend's bad judgments, but you can judge this by what you have done for each other before, but I can only build a hypothesis.
Generally, men with strong self-esteem, sense of responsibility and love for you will ask their girlfriends for help. It must be urgent. He will promise to repay you within the credit card period, and will not cause trouble to his woman and hurt your feelings.
But if not, the situation is complicated.
Maybe he just burned his eyebrows, didn't know what to do, and probably didn't consider it.
The problem of repayment.
All the suggestions are to talk to him more, understand his thoughts and arrangements, see his next plan, and then decide according to your ability.
But if the amount exceeds your repayment ability and you still want to help him, it is suggested that you write an IOU just in case, and you can tell him your concerns.