[Rhys props himself up on his elbows, looking at Betelgeuse seriously.]

If all she cared about was keeping you happy so she could get her deal, why wouldn't she have lied to you?

[He holds out a hand, trying to coax Betelgeuse back into his arms.]

Because she needs her friendship with you to be real. Not-- a story she's telling you to make you behave yourself. She's probably just as sad as you are that it isn't enough.