Tell the truth or lie?

i like this guy back in hs. we just happen to run into each other profiles on myspace, and i have not update my profile yet so i have old pic of me up there. i was much slimmer like i was in hs. now ive gain weight like make 50pounds and i look different. should i tell the guy or not bc we are startin to like each other. im in a different state so i do have time to lose weight until we meet again. but im not tryin to lose weight for him ive been doing this for me. so do i tell him or not