More than a friend

I met a guy 2 years ago and we became friends. He was engaged at the time but they've been separated for quite some time before we met. He's ending things with her (not because of me) but she's making it difficult. He claims that him and I are just friends but he has confessed that he likes me as more than a friend. He travels a lot for work and he gave me the keys to his house so I can stay there if I want to. He pays all the bills in the house. He will say that we're best friends, he treats me like more than his best friend and a few times he said he wanted more.