Painful Dating

From INKR Comics:
The timid Na Jiwoo wants to break up with his scary girlfriend, so he lied about joining the army.
After that, he gets a part-time job, but as if by fate, his co-worker is his girlfriend's roommate.
Jiwoo must now hide his identity in front of his girlfriend while his co-worker is crushing on him.

Original Webtoon:
Naver Series, MrBlue, Lezhin

Official Translations:
English (Dashtoon, HyperComic, MangaPlaza), Japanese