Adjustment of Status - I-485

So today we had our interview at long island field office. First of all the office was little rude to us. Thatsy my USC wife got a bit nervous. He asked few questions to my wife like how we met and when and where was the marriage.She was bit nervous so she said wrong dates at first but she corrected it.Then he looked at our pictures. We got married after 3 months of dating so he was asking that too, how you got married in short time.Then he asked me bunch of questions like have you ever got arrested, terrorism, drugs like yes or no questions. After that he kept some of the documents and one photo with him. At last he said we will get the decision by mail in 120 days. We are tensed now don't know what gonna happen. Any one had similar experience here please reply back. We filled in june 2016 and we got interview date 1 month before. Got married in 2016 on B1B2 visa.