You are missing a ton of important factors in this hand. If you want an answer that is accurate you need to provide full information about the hand, especially whether you were all-in before they hit two pair or not. But in absolute honestly, it doesn't matter whether or not he got lucky or not. If you played the hand correctly then you will profit in the long run. If you didn't thenyou won't.

Head to the link that wellrounded gave here and begin reading all the articles there. It will help you better understand how you should look at things.