Does he truely love me...?

the person i call my boyfriend keeps saying we re nt dating whenever his not with me bt when we re together thats when he calls himself ma bf...he keeps tellin his ex dat there noffin btw the both of us even wen he claims his no longer dating her....am nt jst happy with the fact dat he tells some people we re dating and some we re nt .ma fwend thinks his jst playin around with me .....pls i need help is he actually playing with me or he loves me cux whenever his with me his so nice nd we never have stress and even though we do ve one he tries as much as he can not to make it last ..wat can i do cux i don't want to suffer from heart break.