Maybe I'll be proven wrong, but I think some people are too hard on Melanie & Devar.
That sister of Melanie's looks like a big boozer with a furious temper - (what gives it away? The angry red complexion with accompanying scowl and permanently downturned mouth or the bloodshot eyes? They're blue, i noticed - but are turning green with jealousy, I think.)
Dr. Phil was completely biased and unfair. If he's going to put up the warning signs, re: Devar, for Melanie; then, for balance, he needed to tell the sister that this marriage is between two people, and she's not invited. Butt out. That, if things turn out the sour way she thinks and spouts about, then she can say "I told you so." But, since that's not happened, and since they seem very happy, and since Melanie's son, Hunter clearly adores Devar (and the feelings seems mutual) then she just needs to suck it up and BE GRACIOUS.
Dr. Phil didn't seem to understand Devar's accent when he said his "9/10" comment was a sarcastic response (to that sister's aggression), so he couldn't give a proper response to us (his "flock").
He also didn't seem to want to understand the renewal of the (lifeguarding job) contract and that they thought Devar would be in the States sooner, so it would not have been right to renew it and quit.
Dr. Phil could have perhaps offered some words of advice for how the furious-looking sister could calm herself and MYOB; either that or be a nice person.
Devar seems like a nice person (even Dr. Phil conceded that). Melanie seems like a nice person. Hunter seems like a nice boy. The problem-person here seems to be the very noticeably un-nice sister.
As for what Melanie spent: as she said, she could afford it. Plus, where Dr. Phil comes from and where Devar comes from are such different worlds, with totally different takes on money - he had no "right" (proper awareness) using his class assessment in this scenario. Devar does seems "like a nice guy" who will then, do the right things by Melanie & Hunter, when he is capable of it. Melanie seems perfectly ok with that. So, what's the problem.
With twisted scenarios like the teenager Nikki and the controlling 58 yr-old "nut" Mark on "90-Day Fiance" - isn't is lovely to see a couple that actually do seem very much in love?
(
(Even that sister commented, about Devar's tars at his wedding to Melanie, "You can't fake those.")
Dr. Phil let his audience - and his guests down.
ALL THE BEST TO THE FAMILY OF DEVAR, MELANIE & HUNTER!!!!