Idk who dat bish is but she needs to find an actual hobby. like girl why you obsessing over someone else's dating life, go dip your toes into the ocean or something, gotdamn. Maybe fix your own damage instead of worrying about some rando's love life. Liaoliao and Pei Yu don't need you up in their faces.
So why is she pretending to be engaged? I figure the normal strat for that is to avoid having people hit on you. Was coworker the kinda person who wouldn't take no for an answer?
Guess we will have a flashback to tragic uni life, her getting gf, people finding out, and conflicts it caused with society. Possibly with the "one partner claims they are totally not gay, just friends" while the other wanted to be open, ergo conflict and feelings of guilt/betrayal