Im so confused..who is jealous of whom...😂😂😂

Hye sung is jealous of omegas and Dojin is jealous of the attention hye sung puts towards omegas

It seems like Hyesung has been shy around omegas (mainly "rich pretty omegas") because he's jealous of them as what was implied in one panel. Dojin on the other hand thinks that Hyesung is attracted to omegas, hence his jealousy.