I spent 3 months from March to May 2020 in the US while on ESTA visiting my boyfriend. I went back to my home country before the 3 month period ended.

In June 2020, I decided to come back again and was interrogated in a little room by aggressive US Customs officers about my quick return - I told them I would stay for a week and they let me in after 2 hours of intense questioning. However, I ended up staying for ~3 months again till September. I never exceeded the limit of my ESTA however on each visit and didn't break any official rules.

It's been a year and I haven't traveled to the US since then or seen my boyfriend. I am planning to travel in October and I'm worried that they might interrogate and then reject me. What should I do? What are the chances of this happening given that it's been more than a year since I traveled?