I saw this article posted elsewhere where a lawyer gets manipulated into buying a really expensive ring and doing all of this other stuff for his fiancee. The complaint, on p. 2, is a good read too. Would you have returned the ring?
https://abovethelaw.com/2018/09/jilted-biglaw-associate-sues-ex-fiancee-over-100k-engagement-ring/
https://abovethelaw.com/2018/09/jilted-biglaw-associate-sues-ex-fiancee-over-100k-engagement-ring/