Boy problems i need help he gone syco !!!?

ok so i been tawking to this boy for 2 1/2 months now and now we are together but iono if i really want to be with him . so i was goignt o break up with him but everytime i am about to he gives me a note or text message telling me he loves me im the best grl he ever had and all this other mess , he told me in a letter to that he loves me hes giving his heart in my hands now he waqnts to have kids like wtf we been tawking for 2 months buhh i dont know how to tell him i dont want to be with him like what should i do should i give it time and see if i like him more i mean i do like him buhh not oh dee how he likes me like wat should i do?