Bf help pleeease!!!!?

ok so I like this guy named drake n he says he like me and stuff so he went out.. later that day his brother told me something .. he said drake doesn't like me.. his friend Chris made a bet saying .. 2 weeks together and if It lasts more he'll dump me.. so I told drake wtf I'm just ur bet f u!! I said and he said what? like it never happens all his friends said the bet was true and NOT to believe drake... his brother never lies.. n nether do his friends, I want to believe drake but I believe more of his friends then him what do I do help plz!!