TIFU By asking a coworker how his GFs driving test went....

This happened a few years ago but me and another coworker accidently triggered one of our coworkers. We have a small work place/shop where everyone's business is constantly spread around. So a coworker of ours recently started dating a girl after splitting from his wife. This new girl was a few years younger than him and did not have a driver's license and was going to college. We would kind of tease him about driving his GF everywhere. He was also somewhat reserved in speaking about his relationship (like intimacy) , but he would laugh stuff off. Anyways, he requested some time off to go take his GF to do her driving test. Later in the afternoon he came back to the shop and when he walked in , I asked "so how did the test go?" And my other coworker said "yea did she pass it?". In response he just looked at both of us in a confused way and angrily spouted "what the ****? " He shook his head and said "why does everybody need to know all my business?" And he went on and on about how nobody can have a personal life at this place..after his rant he said .." it went alright, the doctor just gave her some cream and said that she will need to apply for a few weeks and if I developed anything I will too, but right now I'm fine".....silence...I looked at my other coworker and he looked at me like "what the?" Both of us cracked a smile...and then I looked back at him and said "the driving test?" And his face went so red and he hurriedly said "oh yes she passed it.." and quickly left. My other coworker and I busted out laughing. So this dudes GF had picked up an STD from a different dude. Not long after that, everyone in the shop did know his business...but it was his own fault...right?

TLDR : I asked how a co-worker's girlfriend's driving test went. He got mad and assumed I was asking about a STD test, he said she tested positive for an STD and needed cream.