Jeanne Aikens was a widow in her late 60s when she found a new love. Or so she thought. Aikens had nursed her husband through Parkinson’s disease until his death a few years earlier, and she was ready to start dating again. Aikens, a nursing manager at Boston Children’s Hospital, met a man called “Logan” through a dating site in 2018 and found they had a shared interest in running for fitness. Or so she thought. Over a few months, they became friendly online, through text messages and phone calls. “Logan” professed his love for her, and they planned to meet in Boston, not far from her New Hamp…