Indeed Claren knows Heejae even before Garam so no need of any gay radar. ;3 , btw they are soooo in love, like, they complete each other's sentences, they share personal space (the coffee scene just for an example) they tease each other without problems, they have been attached to each like for 2/3 years, every time they go for European holidays there are more engaged than me and my right hand.

claren and her gay radar aye