The blow-up should not ruin the relationship between Jackie and Mark. They are family. Family's fight on a daily basis. This is not one of those make-or break deals. She's just being a cautious person--which is very understandable considering the job and the likelihood of death, thus, her worries are warranted. HOWEVER, at the end of the day, it's about being supportive and being there no matter what. I hope Mark and Trey have a future together. They have a really good connection and there is a possibility. There are people who can make it work so you never know. Most people can't do long distance but there are always exceptions to the rule. Let's hope this is one of those situations.