Andrew and Susan married in 2015 and lived together until they separated in 2018. After 12 months of living apart, they came to an agreement in relation to maintenance and property matters. The agreement was that Susan would pay Andrew $250,000 for his interest in their matrimonial home, and that Andrew would pay Susan $1000 per month to contribute to the mortgage payments on this home. Susan paid to Andrew $250,000 but Andrew refuses to make maintenance payments to Susan. Andrew argues that their agreement is not enforceable because it was made in a domestic context. Is Andrew correct? Explain your answer and indicate relevant authority where appropriate.