Read the following dialogue.

Joey: Fancy meeting you here, Rosie.
Rosie: Hey, Joey. Are you going to watch Spiderman?
Joey: Nope. .... (1) It's a great movie.
Rosie: Aw, too bad. ... (2) so I'll have to watch it alone.
Joey: I'm down for it with you, if you don't mind.
Rosie: You're more than welcome, Joey. Tickets are on me.
Joey: Sweet. I'll get us popcorn and drink.
Which one is suitable to fill in the blank number 2?