I found a clue

I finished my dinner and went home angrily. I couldn't believe that Alexia could disrespect me. When I woke up the next day, I saw Alexia preparing breakfast. I didn't act like anything was wrong. We ate breakfast quietly. Alexia apologized to me.

Alexia went to work while I decided to go to the company. I met the Ceo and asked him if the girl in the picture was a twin. He told me that she was a twin and he was with the second twin named Alexia. I didn't understand. So I asked again what the name of the girl in the picture was. He told me her name was Alexis.

What is going on? I am so confused. Does that mean Alexia's twin was using Alexia's name. I didn't understand. I decided to ask the Ceo how the girl named Alexis got missing. He told me she got kidnapped during a fight between her family and some gangs.

Then suddenly I remember the man who came to threaten Alexia and Alexia telling me not to report to the cops. What if Alexia knows about her family and is hiding it from me. Is this the secret she was talking about. I decided to ask the Ceo about disappearing ink. He told me that it was true that there was disappearing ink but it is used when someone wants to write an important secret.

I decided to ask him how to see what was written in the paper. He told me to put the paper under fire or light. So I went back home and put the papers under a light bulb. Then I the ink on the paper started appearing. I quickly read what was on the paper. It read 'I hate my sister she took everything away from me' 'I hate my best friend, I hate my mom and dad, I hate everyone' 'I wish everyone could just die' 'I will make them pay for everything'. That was all that was on the paper. This same words were written on all the other paper.

The handwriting was very familiar. It was Alexia's handwriting. Oh my gosh, was Alexia thinking about killing her twin. So it was true that Alexia's twin was using her name. But why. I didn't know what to do. She said she wanted to get revenge but the Ceo seems to be a nice man. Well at least I got a clue.