Male lead was cheated on and now has trust issues

Either by an exe who is or isn't the second female lead. He begins to bond with the female lead and get over his trust issues, but the second male lead who likes the female lead causes problems. The male lead then thinks the female lead is cheating on him as well. That gets resolved, happy ending.

 pigtails4ever:

The liar and the lover

Secret message

Seen them, but thanks.

Suspicious Partner  

Just you taiwanese drama