Reactions to Relationship rule and observation

In regards to a recent post about Relationship Rule, I would like to relate that to a previous observation or a couple I had once posted about. I feel that the relationship rule is very key in regards to relationships today. We must give the up most respect for our partners and we hope that they turn around and give us the same type of respect.
Like I said in my recent post that the relationship rule is one that is summed up to no violence wither it be verbal or nonverbal. I would also like to make it clear that in the relationship that I will referring to there is no violent behavior in the relationship. I just think this rule relates greatly to how important nonverbal communication can be in a relationship. The couple the I observed followed this rule to a “T” while I was watching them. I think the reasoning for this is simply because they were out to eat, they knew who I was, and they were in a public place. But still when they are at home I never see them fight or anything in person. But then he always tells me about their arguments and I’ve put the assumption together that these arguments are coming over text. This is almost like breaking the relationship rule I feel, because they are acting in a violent way and either one of them have no clue how the really feels or is thinking, Trying to have a serious conversation over text is the worst possible think that you could do. You can’t see their emotions, you can’t tell their tone of voice, and it’s just wrong! It’s very hard for me to sit back and observe this because I don’t want to get involved in their life but then again I don’t want them to have a bad habit get worse. Maybe if I can get enough courage I will have a chat with him to see what he thinks about the whole deal.