Russia and Ukraine have a disproportionate number of women online playing the love scam game. It works the same way the Nigerian prince inheritance scam works. The scammer promises the mark millions of dollars from the inheritance but you just need to send a little money first for taxes, then for customs, then for administrative fees, then some surprise comes up and you're so close to getting the millions of dollars but you just have to send a few hundred/thousand more. Of course, the inheritance does not exist.
The beautiful Ukrainian bride also doesn't exist. Maria may exist, but she has no interest in ever meeting Cesar. All that a Ukrainian love scammer wants is for the man to send her money every month, and send her money for plane tickets, and she'll come up with excuse after excuse of why she can't meet him, like "I missed the flight" "Immigration problems" "There's a war," etc. They never meet the guy, they don't want him coming to Ukraine and messing up their shit.
If this particular scammer meets Cesar it will only be because of this TV show and the potential windfall from appearing on it.