"Because your obviously drawn to those kind of people and it just adds to the excitement." He replied. He was in a very good mood. He looked around . "Ah hey if hes old what does that make me." He pouted a little. "Plus regenration is kind of random , so I could look older in future ." he chuckled. "Well maybe not as old as I am, but maybe old by human standards. Though when I was younger I looked old." he chuckled. "Well that was my first few regenrations."
He grinned a bit. "Ah 903 yrs, I feel old sometimes, but not always."
The Doctor looked at Death "Ah thank you for that, I will be careful ." he knew he would stay alert. "I'm glad to be invited none the less."