Flirting

I have started email flirting with a friend. He's been a friend for five years and we've just started flirting this week. It happened very suddenly but very naturally. It is the most fun I've had in a really long time. I feel cute and sexy and funny. The best part about it is that there is absolutely no pressure that it goes any further. This is exactly what I need right now. Can flirting be therapeutic?