You don't always know for sure, so it is a good idea to be friends for a very long time unless you are well into your 30's and want to take your chances.
If he tells you he loves you or by the way he acts
Tell him to move on because you already have.
if he tells you he loves you & if you really mean it .
tell him what you feel!
He says he loves you
ask him how much he loves you
He will tell you how special you are to him. He will want to always be with you. If your boyfriend truly loves you he will tell you "I Love You".
Don't do that because she or he. Will get upset and want to fight your ex and dump you
if he truly loves you and you love him, neither of you will have any doubts about the other
if he picks u over his bros....if he tells u ur beautiful like he means itif u meet his parentsthats if u kno he loves u
tell him you feelings for him
He doesn't tell you he loves you because: a.) He is actually a non verbal person and prefers to show it through gestures... b.) He likes your best friend and is trying to make the said person jealous. But I like "a" better. :)