Citizenship

I got married to US citizen back in 2015, I got approved for my 10y GC in 2017, by the time of approval we had 2 years together. At the interview they didn’t ask for anything, no pictures, no evidence of anything, I guess because we were both young, I don’t know. We got divorced 2018 due to incompatibility, he was very unstable. Now its time for me to apply for my citizenship and I don’t know if I should worry about them asking me about my previous marriage, because even though it was real, back then we didn’t have much, we lived with my parents, and I don’t have much evidence to prove it was a real marriage at this moment. We both don’t have kids and haven’t gotten married after the divorce. I’m single, but I believe he is in a relationship at this moment. So my question is should I worry ? Are they going to ask me about him ? Anyone had an interview for citizenship with similar experience ?