I know ive already asked this but I added details. What has changed with us that he is so caring now?

He's extra caring because he's married and using you as a "friend with benefits." He will never leave his wife and you will never be his wife. He's hoping you just will settle for some weekends, kindness and small gifts. By messing with him, you are preventing yourself from finding real love. He's using you and you know it but don't want to believe it.