What would you think if you found out your girlfriend had chlamydia?

I found out today that I tested positive for chlamydia. I have one papa (a male supporter) whom I meet once a month with a condom, and a boyfriend I have sex with without a condom about seven times a month. I bled during sex with my boyfriend, so I went to the gynecologist right away and got tested. The result was chlamydia. I went to a hot spring over New Year’s, so based on the timing, I think that’s the most likely source. My gynecologist said it was possible, although some people say you can’t catch it from a hot spring. There’s also my papa, so I really don’t know how I got infected. For all I know, I may have already had it almost a year before I started dating my boyfriend. I apologized and told him I wanted him to go to a urologist as soon as possible, prepared for the possibility that he might break up with me. But he said, “You don’t need to apologize if you didn’t cheat,” “It’s not a big deal if medication can cure it,” and “Don’t worry about it.” It’s entirely possible that I caught it at the hot spring, but because I feel guilty about having a papa, I feel awful for exposing someone I love to this risk. Would most people not blame their girlfriend if she got chlamydia? Would you break up with her? Do people generally feel that it’s fine as long as it can be cured with medication? Also, I’m thinking of sending my boyfriend money to cover his treatment costs. How much would be appropriate? Around ¥30,000?