It was the year 2001.
After you, Rusty, and the rest of the gang successfully robbed Terry Benedict's casinos, y'all decided it was time to celebrate.
You all were drinking pretty heavily, but you and Rusty definitely drank the most.
The next morning you woke up next to him in a hotel room, completely hung over and not remembering what happened the night before.
The sun shines in your face, waking you up, so you hold your hand infront of it to stop it from blinding you. As you do that you notice a ring on your hand you weren't wearing before. You sit up carefully, trying not to wake Rusty, then you examine the ring.
It's on your ring finger, of course. It doesn't take long for you to put together the pieces, you take Rusty's wrist and hold his hand up to check if he wears a ring as well, which he does. This causes him to stir, maybe he remembers what happened.
You two have known each other for years and you did have feelings for him, but did he really feel the same? Or was this just a Vegas wedding accident to him?