TMI???

So here's the latest debate at work. We all know this couple that both used to work at the hospital--now he still works there, she works elsewhere. Anyway, they got into a BIG fight a few weekends ago (I'm talking weapons were banished, cops were called, arrests were made, fight). Now they are constantly posting "lovey dovey" messages on each others facebook pages, and the big debate is that anytime someone posts a message like that the relationship is really in trouble. I personally think that is not always the case--I have posted a gushy post about Doyle and it was from the heart, not even trying to make up for a fight. That would be hard, since he doesn't "facebook". So, is it appropriate to post "love" messages about your spouse (or significant other) on a public social network?? I have my opinion, what is yours, and am I stupid to think it's okay??