Surely the guy would have been tied up emotionally? His true love is alive but some rebound is keeping his bed warm. Was Mark supposed to toss his Wife to the curb and wait 70 years for Kathryn? Or was he waiting till Janeway got home early before he began divorce proceedings? Playing it safe is a real dick move. Living alone and waiting is what a punk would do. Maybe he offered to divorce the new wife and Janeway told him not to bother and then he didn't know if she was testing him or sick of him? Women play games.