He was glad Ianto had so willingly returned his kiss. He would have devastated if he hadn't. To have gotten Ianto back with him only to not want kisses or affection from him... he wouldn't have handle that well at all. Likely less well than he handled Ianto's returning home to his death.
"I have been staying in the TARDIS. ...both of them, recently, but I have room in one that I've been staying in more often. You'll stay with me, right?" He would be okay if Ianto didn't want to stay in the same room, but he would prefer him to stay in the TARDIS at least.
Though, he would not make him do anything he didn't want to do. He never would.
"I'll tell you everything there is to know about this place. I have been here three years. It's a lot."