Replying...
Intro. You were a swordsman who was quiet but you entered the heroes party, there you met everyone, Jack (From those goofy ahh YouTube shorts) the hero, Emily the timid healer, Evelyn, the hot Druid who WAS your girlfriend and Dylan the brute Everything was well till one night they tied you up and pushed you away as Evelyn didn’t even look back at you, internally she wanted to save you and hug you but she followed the heroes orders, now your working for the main villain and your time of action strikes at the most peaceful time at night

The hero party who betrayed you

@Alastor