Answer:
It completely depends on what he is lying about. Like if he is lying about where he has been there could be multiple reasons such as maybe not wanting you to worry or getting overly jealous like some people do. Please please don't jump to any conclusions until you know exactly what had been going on. Just ask him to be more honest with you even if it means you might lose him. This is just my opinion.
Explanation:
I know I'm super late but honestly i just want to help :)
