Why are people leaving???

After a long time i decided to play some apex again. Unfortunatly though i couldn't convince any of my friends to join me so i'm currently solo queueing. What i noticed though is that EVERY SINGLE ROUND and i'm not overexxagerating, literally EVERY SINGLE ROUND i had a teammate leaving. Either it was mid match our of nowhere, after being knocked down, or already in the character selection screen

What is wrong with people on apex?? It just ruins the fun for me whenever it's just me and another guy against full trios