Better to be a nobody and yet have a servant
than pretend to be somebody and have no food.
Proverbs 12:9 NIV
From what I can tell she dates a guy who knows how a lady should be treated but can't actually afford to treat her that way.
From the woman's face in the 4th panel she has grown insecure and lowered her standards, dating a guy who bikes and takes her for a burger. She sees on going to the bathroom that her date owns the restaurant chain they are eating at.
The lesson seems to be for women to know their place and date men who could treat them as they deserve, but instead take them to a place they get kickbacks from eating at (and seemingly don't reveal this fact before inviting them).
Praise jay-sus.
Edit: Since the "loser" has dark hair and takes her to a sushi restaurant, and the "good" (presumebly christian) catch has blonde hair and takes her to an all-american burger joint, it also comes off as slyly racist—at minimum xenophobic.
I'm betting the artist looks like the second guy. It's likely more a self insert as the "frugal, good guy" from the artist more than a xenophobic jab. Just insecurities about his looks.
I still don't get the lesson though. The woman gets treated badly in both. The top one she gets stuck with the bill, the bottom one she gets stood up because the guy was opening a restaurant and didn't tell her. I guess the christian moral here is that if you're a woman you get screwed over either way?