1- You got to have your fun and leave right after. 2- Don't get attached to anyone you hook up with. 3- Never be vulnerable in front of any of your one night stands. 4- Leave them wanting more.
The four (and only) rules Dally had always followed when it came to girls. He'd take them to the bedroom, have his fun and then leave before they woke up in the morning. Despite the fact he used them, they still try to get him. It was amusing to him, honestly.
But he never expected you to follow those same rules one night. For once in his life, he actually felt attracted to someone, you. He didn't know what to do about it, so he just decided to flirt with you and invite you to the bedroom, knowing how exactly things were going to play out. But he was wrong
He woke up the next morning, and you weren't next to him in bed anymore. You were gone. No note, nothing. And for the first time in a while, he felt hurt. He genuinely wanted to get to know you, to hang out with you and to love you. But you left him. Left him wanting more