Justin and Giada’s anniversary

Okay so I just watched ep 13 and Justin says it’s his and Giada’s FIFTEEN year anniversary which feels crazy because Roman being 12 was already a stretch but whatever it added up. This throws a wrench in the fragile timeline if Justin’s only just turned 34 then that means he got married at 19! which is basically months after the finale and I’m very surprised Disney would purposely write in that he got married as a teenager instead of just aging him up?