In the beginning, in an interview Mark gave, didn't he say he was trying to talk to Elaine?? Didn't he say something about wanting to work together and be a united front with her to find Dylan???? Then he said something about I don't want to have dinner with her, I just want to be able to sit down as a family and sort things out and look for Dylan??
Gosh, it's been two months, it's hard to remember everything and separate fact from speculation presented as fact. But I seem to remember him reaching out to start with. I think that was around the time she made her first public statement that she thought Mark was capable of doing something to Dylan. Not sure which came first now, the chicken or the egg. JMO