"Jack wont hurt any of my friends no matter species, Him and his team are careful what creatures they go after, " The Doctor was sure she would be safe with Torchwood. 
They are good people." He trusted them with his life. He was sure the TARDIS wouldn't have brought them here if it was a risk to Seclusions safety. "The TARDIS brought us here because its safe."
He knew she had everyright to be neverous. He was unsure if Jack would start flirting with Seclusion. He knew JAck flirted with everybody and everything. It did get on his nerves sometimes.

He walked out and was looking around. Before he could say anything, Jack was imediately came over and hugged him. The Doctor grumbled a bit, He still hugged him back "Jack your hurting me." He whispered.
Jack pulled back and then looked at the TARDIS "What the hell happened? You loose your skills at flying" he teased him. He was looking at Seclusion "Hello,Captian Jack Harkness and who are you?" He said in his normal flirting tone.
"JAck!! Just... Don't" The Doctor sighed a bit.
Jack grinned "I was only saying hello." he was looking at Seclusion.
"To you thats flirting, " The Doctor was looking at him "Do you really have to flirt with everybody I have with me."