Some couples fall flat in K-dramas and some are believable and sweet - but then there are some who seem so real that dating scandals explode and a fleet of ships heavy with fans sail out on sea!

Check out these couples below who had such great chemistry that the drama really came alive!  The ones that found themselves entangled in dating rumors are noted, as well!

SEE ALSO: 'Our Blues' actress Jung Eun Hye to tie the knot in May

Lee Jong Suk and Han Hyo Joo in 'W'

Song Joong Ki and Song Hye Kyo in 'Descendants of the Sun'

*dating rumors

Eric and Seo Hyun Jin in 'Oh Hae Young Again'

*dating rumors

Lee Jong Suk and Park Shin Hye in 'Pinocchio'

*dating rumors

Jo Jung Suk and Park Bo Young in 'Oh My Ghost'

Ji Sung and Hwang Jung Eum in 'Kill Me, Heal Me'

Hyungsik and Nam Ji Hyun in 'What's With This Family?'

Joo Won and UEE in 'Ojakgyo Brothers'

*dating rumors

Park Seo Joon and Baek Jin Hee in 'Gold, Appear!'

*dating rumors

Park Hae Jin and Kim Go Eun in 'Cheese in the Trap'