Do i love him?

ok i have been goin out with this great guy. he makesme laugh all the time!! we do lots of things together and he said i love u.....i fraked out and said it back but i feel very storng feelings 4 him but also am confuesed if im on the right track or not....!!! we neva fight we always have a great time together an dhes always findinf summin to make me laugh or smile!! but is it love or a fling???