What shall i put bk to him ?

so this lad i went to the sme skwl as him n i could talk to him bout everything but thn i had to move away n i dont live close to him n i know he fancys me but he sent me a text tonight asking if i was single n thn he texted agen saying "theres no point me asking u out cuz u wil say no and ur way to good for me " i do like him but more as a mate tho wat shall i put bk to him help quick please