Video - Family Dinner Disaster: Accusations of Grooming.

I recently started dating a wonderful woman who I truly connect with. However, things took an unexpected turn during our weekly family meal. My sisters, who are around my age, started accusing me of being a "groomer" because of the age gap between me and my girlfriend. Their comments caught me completely off guard and I felt attacked and misunderstood. I tried to explain that our relationship is based on mutual respect and understanding, but they wouldn't listen. Feeling frustrated and hurt, I ended up storming out of the dinner. Now, I'm questioning if I overreacted or if my sisters were out of line. Am I the asshole here?