"I suppose," The Doctor grinned a bit. "Donna was the only one for awhile who didnt fall in love with me." He replied. He was looking at them. He knew he couldn't stop Jack, so instead he smirked "Thought you didn't want to be a vampire snack."
"Is not a big deal. Cant die." he shrugged "Even if being temporally dead longer isnt the greatest." Jack replied. He was looking around. He then looked back at Death. He seemed to like those comments. 
"There is always time for flirting." he replied. JAck grinned a bit. He looked at Death. "i'm free any time handsome."
"Time and place Jack, I don't know why in the middle of a battle or trouble seems to be a good time for you." The Doctor shook his head.