Regarding the matter of "innocent flirting", it's not so black&white as some comments make it to be; it depends on the people and kind of relationship involved:

- For some couples playful flirting or even jokes are an absolute no-no.

- For some they are OK, as long as it stops then and there.

- For some they can be something to laugh about together, or even something that "spices up" the relationship.

Just because something works for you, it doesn't means it's the right way for everybody. We're all different.