Sounds to me this guy is your partner...
any how, yes there is a chance you two could be playing STD ping-pong together. Usually both parties have to be treated.
Now, you had sex 2 weeks after treatment.... HMMM. Zithromax stays in the body for about 14 days, so you MIGHT be covered.
Good luck
You said you got treated but did you tell your partner that you got came up positive? If so did he get tested & treated? Even if his came up negative he still needs to be treated? Like Wear/a/Jimmy said it very easy for you two to be passing it back & forth until both of you get treated.
I haven't had sex in very close to 8 years and at the same time I haven't seen a Doctor in as long. I had a wet dream and notice blood in my seaman. I went to see a doctor and he gave me ciprofloxacin 500mg twice daily. Is it possible that I could have carried Chlamydia all this time by denying and negleting any problem? And what damage could have been done? and is 500mg of ciprofloxacin twice daily going to help. The doctor also prescribe doxazosin!