Se-rom :	오빠, 내가 원하는 프러포즈는 그런 게 아니잖아. That’s not how I wanted to be told you loved me.
Ki-dae:	아니라고? It’s not?
Se-rom:	왜 그래? 잘 알면서? 나, 너무 기대돼. What do you mean? You know me better. I can’t wait.

너무 기대돼 (I can’t wait)

너무 – adverb meaning “too”
기대 – noun meaning “expectation”
되다 – verb meaning “become”

Casual – 너무 기대돼
Semi-polite – 너무 기대돼요
Polite – 너무 기대됩니다.

>> [기대돼요] is a combination of [기대되다] and the ending “–아/어요.” Even native Korean speakers get confused with whether to use –돼요 or –되요 as the ending.

>> [기대돼] is the shortened form of “기대되어” which combines “ㅚ” with “ㅓ” to get “ㅙ”  되+어=돼. To create the honorific form, you can just add the auxiliary postpositional particle “요” at the end.

>> Relatedly, [기대하다] also means “to expect,” or “to look forward to”