Am I going crazy or am I being cheated on?

Anonymous

So this was a birthday for my girlfriends best friend, soo they have a closed backyard that we had a braai and games in, I found it weird that afterwards when it was time to eat she had left her phone behind (something she doesn't do) also her best friends brother had left his phone to , we all had gone inside the house afterwards to eat so I saw my opportunity (me being insecure ) to take her phone and proceed to the nearest bathroom , I noticed she was also very interested at her phone at the time , soo I had been a good 10min in the bathroom checking to see if there was any credible evidence to day that she was , I had found nothing, But there where a lot of stuff deleted like chats , moving pass that when I had come out of the turned to go outside here she comes and sees me , having a very shocked look on her face asking me where her phone is , now me being a very bad overthinker told her "no wasn't your phone in thr backyard" to see if the bestfriends brother was there , while asking her this I also saw that her underwear had been out of her pants and tangles with her shirt , like she had picked them up and moved very haistily first red flag, then proceeding outside I see the brother who was pretending to be on his phone , now there is a place they could've had sex and based her reaction and thr underwear I am assuming there worst , her excuse was that she had been in thr toilet , but i was in the toilet there is another one that guests rarely use , she isn't a person to lie but these coincidences are very hard for me to let go , what do you think

Am I going crazy or am I being cheated on?
7 Opinion