Really, you wouldn't be able to take my dirty jokes in mixed company, me hugging my male friends, and telling Darryl at work how beautiful he is when I want something?
( Darryl is 43, portly, balding, happily married with a 6 year old, and loves a bit of banter

)
My boyfriend hasn't got any female friends that he's like that with as far as I've noticed - however of course I wouldn't mind!
He's been in the same room with me and my friend Parimal, who likes to hug his female friends and tell them "Awww, I love you!" - although that's less flirting and more genuine loving friendship. Pazza's just like that. BF doesn't bat an eye, he knows I'm all his.
I would never ever ever knowingly tease someone who actually likes me in /that/ way. That's extremely unfair.
I do still flirt with the BF, whisper things to him, gently pinch/grope his bum, stuff I'd never do to anyone else. If I'm being a bit 'friendly' with lots of my male friends, like at a birthday party - I make sure he gets more than his fair share too, and even more later on