The Doctor backed up, He was startled by this new Master. But not enough that he was truely scared. He was never scared of the Master, He knew that he alway would try to help. He knew he was reckless in coming here. 
Maybe he was just so alone that he had missed the Master. He wasn't that sure anymore.
"I'm not leaving." The Doctor said. He was looking upon the MAster, He could see the MAster's insanity. He really needed to find a way to help. He doubted anybody here truely knew the Master enough to know how to deal with him.

"I came here to see you," The Doctor went on "I wasn't sure what had become of you, But I do doubt the places like this are what you need," He was looking at him "I don't like it here." He whispered. He wasn't sure how the MAster felt about the whole thing.
He knew that freeing hin would be a huge risk. The Master had caused so much trouble in the past. He was looking at him "I don't know how you know I am on my last Regenration but I know you wont kill me, even if you are different now. I avoid death, but also you would be bored if I was dead." He countered. He wondered what the Master would even do.

"You really do need help this time, and I am here to help you." The Doctor continued to speak "All those times you were not wanting me around, You know I never would leave, sick, hurt , insane I never would leave you if you needed help."
He had been trying to help break the MAster out of his insanity for a long time. He was wearing a Stetson at the moment. He had misplaced his fez which was greatly upsetting for him. He loved his Fez, even of alot of his friends didn't. He noticed an apple roll on the floor.
"Where did the apple come from, I don't like apples, apples are rubbish." He pouted childlike. He walked around the room a bit, He was the only one who would ever get close to the Master and try help him at his worst in the past. EVen if those times seemed nothing to now.

The Doctor would always still care about the Master. Even when the Master had hurt him badly. He was slowly getting closer to him. He was sure freedom and travelling would be somewhere to start with helping the time lord.
"The drums..they almost seem to be effecting you worse than before." 
Knowing how much he was risking his own safety. He walked over and attempted to place his hand on the Masters forehead. He was sure he could comfort the Master and ease his pain somehow.

Being alone maybe was what made him more reckless, But yet he never gave up on the MAster. He was ingoring the fact the MAster didn't want him there. He could tell he would need him eventaully.