Adam Levine says he "crossed the line" by sending "inappropriate" messages to a woman outside his marriage but did not have an affair. The 43-year-old Maroon 5 frontman denied cheating on his wife, model Behati Prinsloo , in a post on Tuesday on Instagram Stories after Instagram model Sumner Stroh said they had a year-long affair. "A lot is being said about me right now and I want to clear ...