My (27F) father (58M) and i have always had quite a good relationship. He taught me how to ride a bike, how to shave and all that stereotypical father-daughter stuff. One thing about him is that he has always been super overprotective. I'm the youngest daughter in a family with 2 older brothers.

When i was 13, we moved to a different state because my parents divorced. I went to live with my dad because he won custody over me. We settled in a nice neighbourhood and i enrolled in the local school. We had nice neighbours who had a son (14M). Let's call him Cornelius (fake name obviously for privacy).

Cornelius and i quickly became friends over mutual interests such as videogames and table tennis. After school he'd always come over so we could play together. Because of my friendship with Cornelius, my parents also grew closer to our neighbours. We had weekly dinner-parties and Cornelius and I always used to sleep over.

Quickly after my 16th birthday, Cornelius asked me to be his girlfriend, which i accepted eagerly. Our beautiful friendship had blossomed into an even more beautiful relationship. We were always "that" couple.

He was a grade above me, so we weren't always able to be together. When it was time for him to go to college, he went to a prestigious school. His parents were rich and he was an amazing athlete so he got in on a scholarship.

The year after, when I had to pick a college, i chose to stay close to home. Luckily, Cornelius and I survived the long distance. Of course we saw each other every night over facetime and during holidays, but it was still quite a struggle.

After college, I found a stable job and bought a house (thanks to some help from both our parents). Cornelius moved in with me and we lived our happy perfect life. Our parents, especially my dad, came over a lot to see how we were doing. Over the years, Cornelius and my dad grew super close.

They went fishing every weekend and sometimes they even went on week-long fishing trips.

For his 28th birthday, his parents and I decided we were going to surprise him. We booked a fishing cabin for weekend. The plan was that he was going to go ahead with my dad and that his parents and I arrived a day later as a surprise. We didn't tell my dad because he is the worst at keeping secrets.

Flash forward to the weekend. On Friday, Cornelius went ahead as usual and took my dad with him. On Saturday, I picked his parents up and we drove a little over 150 miles to the cabin.

When we parked the car, we didn't see them anywhere outside so we went inside. Silence. So we went upstairs where we heard a weird noise.

I think you all can guess where this is going.

My father was fcking my boyfriend.

i opened the door and a blood-curling scream left my mouth. My father and boyfriend looked like they had seen a ghost.

I immediately left with his parents and have been ignoring them both ever since. It's been a week.

Yesterday, Cornelius came home. He had my dad with him and he told me we needed to talk. He told me he had been in a relationship with my dad for the last 3 years. The thing that shocked me the most was that he also told me they were even planning on marrying. My dad had already proposed.

i was flabbergasted.

When i thought it couldn't get worse, Cornelius INVITED me to the wedding????? i just threw them out of my house.

I blocked both my dad and Cornelius on everything and i'm not planning on unblocking them any time soon. AITAH?