Interesting question -- not sure if I should answer by analyzing why YOU are asking this, or what HE was trying to say...so confused! (laughing)
All jesting aside, let's see. I think the term "blandishments" comes to mind. (Slipping on lawyer hat) -- to find the meaning of a phrase or writing, you need to look at both the writing and the actions surrounding it. Mere words without action are just that -- polite niceties designed to make you feel good and think happy thoughts -- but have no real weight. For example: If said - "You are the most important person in my life.", and then did not speak to you for three days...what weight would you give my comment? If I told you that you were the most important thing (?) in my life, and then went and watched football instead of spending the day with you as you asked -- one might make the argument that, perhaps, you are NOT the most important thing in my life. You get the point.
A mere phrase, platitude, or compliment, without the context of action, is hollow and should be taken as a courtesy, and reciprocated, but not, per se, viewed as compelling.
The converse of this is also true -- remember that your ACTIONS need to back up your WORDS. It's fine to flirt, and it's fine to make small talk of little consequence. However, if you want something to have meaning beyond the immediate, make sure the actions/words are in synch.
(And remember, when they aren't -- people make mistakes too, so be ready to whack'um on the back of the head, then forgive and try again...compassion, if you remember :) ).