This guy I dated for two years was a minor all along and lied about his age and everything else about his life

For context I was like 22 at the time and he was 16. We met over at discord and did alot of NSFW stuff I'm talking sending porn to one another, nudes and sexting. I found out about his real age through his twin brother's profile on twitter I stumbled across his page and he mentioned his real age in his bio. I felt truly ashamed and disgusted at myself for what I've done and confronted him immediately. All he did was get upset at me and trivialised his disgusting actions saying it wasn't a big deal, he was a pathological liar, he lied about his height, his age, his profession (being a pilot). I was completely Appalled and Distraught and felt like a pedo. Anyways I immediately cut things off with him in 2024 but I still think about this incident quite often if not daily in a way i feel traumatised. It made me also wonder how often is it do minors get away with lying about their age just to get with adults.