Fausto is there to ENTERTAIN every Lonely woman who comes through .. and is in his PRIME doing this , and getting Paid for it to boot ( in more ways than one)
And along comes SHIRLEY from Ottowa , and she somehow thinks that HE is the Right Man to be a Father Figure to her Child .. because he tells her ( in his best Spanglish) that he has sworn off that kind of Lifestyle ... given up the Wine, Women , Food, and Easy money.. Put it all behind him...
He just wants to settle down and be BIG PAPI to her Offspring , which she had with another man ..
This Scenario actually makes sense in her mind ? ?