ENTREPRENEUR - July 2 - Lori Cheek was covering the costs of her dating service Cheek’d by digging into her 15 years of savings. She is out of money to continue building her dream, business card-like dating service where singles hand out cards with flirtatious messages to strangers for $20 - $25 a set. Certain individuals find it difficult to let go when a startup goes south. How do you spot the warning signs that it might be best to call it quits? Finding yourself focused more on keeping a business alive than ensuring a safe place to live is one clue. And looking at how healthy your current relationships are can act as a barometer. Cheek said her business helped her find a fiancée but that relationship ended, in large part due to her passion for the business. “I’m thinking I’m onto something,” says Cheek, whose venture is now four years old. “There’s nothing that’s going to make me stop.”