I think you are over anaylizing, complicating and confussing your mind with the what ifs. Listen to your heart not your logical mind. If he has made changes for you, calls you long distance most days and makes everything non threatening to you then yeah he is interested.
If you need to do a lil soul searching for yourself to be the woman he wants then don't be afraid just go with the flow.
What are these red flags that are popping up that are freaking you out? Your post was very non descript is it you don't know what you want??
Vent get it out talk to us