Err... I think I'd choose YeSung from Super Junior (he's so 4D, I think that would be interesting, I think he'll be surprisingly sweet ^-^)
Or maybe JunSu from 2PM... although he seems like someone who'll ask a lot from me! x] (cook, please? wash, please?) Haha! But I think he can be incredibly gentle and caring too (not to mention protective/manly) =D
And then there is the choice for KyuJong ^-^ 'cause he stole my heart in the SETI webtoon drama =)
Other options I'd definitely think are interesting are: JaeJoong (tvxq), Yoseob (beast), ChangMin (tvxq), WooYoung & TaecYeon (2PM) =P
Hehe ^^" Sorry got carried away~!