My wife's aunt was discussing marriage with her long time boyfriend last year. He's a good bro, former Marine grunt and has a killer refinery operations job making $120k a year easily. She's a high maintenance 30-something bish working in IT. He took her to look at rings and she demanded the $8k ring she wanted, and when he declined she said she'd evwn go in halves to get it.
She's now single. Good call.
Cool story tl;dr