I was in touch with a guy from Texas through a matrimonial website. After 3 months of chatting and a couple of times over the phone, he offered to come visit. He had booked his tickets. Lately, I felt he is not the right person and I felt very uncomfortable to meet him. I had messaged him saying that may be we won’t work out. His reply was to pay for this ticket. I paid him 50% of it. He now wants the rest of it and has threatened to legally file a complaint against me for emotional trauma and loss of paid work. Just to make it clear I did not ask him to come or take time off from work. Can he sue me ? I am in Canada .