How to call romantically girl in Korean

[polishboy]

One girl likes me.

[ILuvEire]

You mean like a pet name, right? 자기야 [tʃagija], I think is the most common one. 여보 [jobo] is also used, but I think it's only for married couples.

Wait for a native to confirm it though.

[Hollow]

Not a native speaker, but 자기 is indeed used. Also 귀여움둥이 (might have slipped on the spelling, but that's how you pronounce it) is useful. The equivalent of cutie. Yeah, 여보 is only for married couples really.
But there's more creative pet names and stuff, it depends on how close you are to the person. I've seen people address each other playfully with 돼지야, it's all good

[Karavinka]

Just one note. Spare "자기(야)" until you are firmly in relationship.

[ILuvEire]

Just one note. Spare "자기(야)" until you are firmly in relationship.

So, 귀여움둥이 should be used then instead? It's such a mouthful though!

[Hollow]

Topic creator, until you're actually in a relationship I'd cut down on the 애칭 and words of endearment. That's just me though

[polishboy]

You mean like a pet name, right? 자기야 [tʃagija], I think is the most common one. 여보 [jobo] is also used, but I think it's only for married couples.

Wait for a native to confirm it though.

감사합니다!

[polishboy]

Topic creator, until you're actually in a relationship I'd cut down on the 애칭 and words of endearment. That's just me though

no, I mean she agreed for dating etc.

[Hollow]

Ah. 자기 sound most natural in that case yeah