I am not crazy about FB at all, except when family pics are posted. I think there is too much information (and much of it is nonsense) that is being posted. (Do people REALLY care that you are eating a sandwich without mayo today?????)
As for texting, there are pros and cons to this. For people on the go, it can be a valuable tool to get a message to someone without having to spend time they might not otherwise have, on the phone. OTOH, people are so used to texting,that having a real and meaningful conversation is rapidly becoming a lost art, and I think that is very sad, and potentially extremely detrimental to ANY relationship, much less that of a couple.