The notecards poking from bouquets rushing out of a Chicago florist all carry similar messages: “looking forward to celebrating in person.” “The notes aren’t sad,” said Kate Prince, a co-owner of Flora Chicago on the city’s North Side. “They’re hopeful.” On this Valentine’s Day, Americans are searching for ways to celebrate love amid so much heartache and isolation as the coronavirus pandemic stretches past its year anniversary. Prince said florists are scrambling to keep up with the onslaught of orders from people trying to send their love from a safe distance. “We are crushed,” she said. Phones are ringing off the hook at restaurants in cities that have loosened restrictions on indoor dining just in time for Valentine’s Day, one of the busiest days of the year for many eateries that have been devastated by shutdowns designed to slow the spread of the virus. In Chicago, the mayor loosened up …