Assuming your daughter wants to maintain her independence, start the process of finding a suitable roommate to move in. Sounds like you already have a potential candidate.
You never really know what's going on with someone. People do whacky things, sometimes for good reason, sometimes for no reason at all. The nature of his text message suggests something going on between the lines. Were you or your daughter placing expectations on him as a caregiver that perhaps you took for granted? Maybe it was more burden than he wanted to handle.
My suggestion is to find a suitable roommate, assuming your daughter wants to stay in the house. If not, talk to the landlord, work out a solution where your daughter pays her half of the opt-out obligation, and the landlord can chase the bestie for the balance. In this market, half of the walk-away money and an empty house for the landlord to lease out again is a windfall.
You never really know what's going on with someone. People do whacky things, sometimes for good reason, sometimes for no reason at all. The nature of his text message suggests something going on between the lines. Were you or your daughter placing expectations on him as a caregiver that perhaps you took for granted? Maybe it was more burden than he wanted to handle.
My suggestion is to find a suitable roommate, assuming your daughter wants to stay in the house. If not, talk to the landlord, work out a solution where your daughter pays her half of the opt-out obligation, and the landlord can chase the bestie for the balance. In this market, half of the walk-away money and an empty house for the landlord to lease out again is a windfall.