I have a theory re why Elle decided to get engaged in the first place. Now it's clear to us all Elle is so out of Rick's league, but when they first got engaged (and when I havent found the GG chat and bought in 100% what Elle said), Elle tried to make Dickles sound like a catch.
I still remember when Elle introduced Rick as this 'sexy professor she met in the Oxford summer program, who now is living the best American life in Florida', she was blown away by positive comments. Some subs even said Rick was 'so so so good looking'.
I feel like Elle chose to make such a terrible life decision because Rick has the potential to make her look good as long as she kept on lying and only disclosing partial truth, which is her whole life strategy. Rick lives far enough for any of her Vancouver viewers to have a real sense of his real life status, looks kinda ok from a far without showing his legs, and has a profession that can be talked up.After all in Elle's mind, fraud investigator who quotes business law once in a while = a practicing lawyer, then a adjunct professor absolutely equals to a real professor. Also, Florida is a very polarized state, social economics wise. A lot of rich people there live a luxurious life style, which clearly is not the reality for Ricklet, but Elle tried to pass for that by shooting all of her Florida 'upper middle class' housewife videos and getting a Porsche.
Also, this kind of hallmark fantasy just works so well for her princess persona: get engaged very fast to 'THE ONE' after being tragically dumped by 'the one that got away'. It's kind of pathetic to value image to an extent that it became a complete train wreck.