See if your C can help get to the bottom of it at tomorrow's session. If H remains uncooperative, and he's been told honesty is paramount and read the riot act, you have nothing to lose. As much as it may pain you, it's better to end it than to continue being lied to.
Ending it doesn't mean it has to be over, keep that in mind. It can mean making a total break now and moving forward for you, just letting it all go. In the future, we don't know what's to happen. Could be you ending it prompts H to really, really examine how he can do better, make changes and seeks you back.
Things work out for us sometimes in ways we do not see at first.
