Can you fall in love in 3 months?

Ok, I have been with my gf for 3 months now and we think we are each others soul mates. We are so happy together all the time and we love leaving love notes for each other. My parents like her and likewise the other way. My question is do you think we are? I have been a few relationships and never have felt this way ever about someone. Please leave ur comments. Thank you. And no, we are not gonna have till we get married, when that day comes.