Cant decide whether to breakup or nt?

hey guys...i have a bf for tyhe last 7 months...we are very happy together never had any serious fights or nythin....but suddenly 1 day cause of some personal reason we decided to stop talking with each other...he says he loves me...he asked me b4 takin this decission..everytime i m ill or need him he is there bt...we rnt talking..he behaves weirdly says he doesnt miss me but when i ask our common frnds they say he is always sad.n remembers me lot...so guys what do i do