I’m (20F) scared of going back home after a traumatic memory

I (22F) live abroad for my studies. I am going back home for my summer vacations in a week. So last year when I went back home something traumatic happened. I’m in a relationship with (22M) a guy since almost 3 years now. Last year when I went back home his mom got to know about us and eventually ended up telling my parents. They were all against it. We still thought of staying together and hiding it but somehow they got to know again. We were in the worst situation possible. My parents were mad at me, said the worst stuff to me, I had a panic attack in front of them and all in all that night was pretty traumatic. They are the best set of parents one could get but that night was just too messy. Now we are still together because there was never really anything wrong between us, and it was ldr so easy to hide as well. Our parents were just against because of age and career. All in all i still get flashes of all those events and what if it repeats. I’m extremely scared. I just needed to vent it out and talk to people who have experienced anything similar.