A divided tank is your only VERY temporary option. The tank is far too small for either fish to live in for a long time together or alone. I understand that you didn't foresee your tank leaking but keeping these two together won't work long. Unless you can quickly provide a large tank for these fish, you may need to find some other places to keep them until then. Perhaps a LFS can keep at least one of them for you until you can solve your tank issues. Jags are very territorial and will take on anything that evades what they perceive as their space. Your P bass is on borrowed time. I honestly wouldn't keep them together unless I was prepared to provide a very large tank to compensate for their adult sizes, the Jags need for a territory, and a clear swimming area for them both. Take the advice given and find the best answer for your problem. Getting upset about what other members suggest won't help you much with your problem.
anyway some don't realize that bad advice given with a respectful tone is sometimes taken over great advice in a condescending tone, but that's people for you, I see no way to keep anything with your jag.