Adjustment of Status - I-485

Hi Everyone i hope this finds you all well. Just had my interview with Immigration everything was going well untill the supervisor show up in the room i was wave through by a immigration officer did ask me for anyhting in Tijuana Mexico they did not even ask me about my marriage anyways they told me that my case is under review days later they send my wife a letter saying I-130 was approved now we are just waiting to hear about the I-485 does it really take years to hear back? my case was file on 5/30/18