No persons body is symetrical in any respect, so I suppose to answer your question, I suppose it has to do with an individual judgement...Would it be huge turn off for you if you discovered that your "to be lover' was not circumcised ? Same kind of thing here but there is a clenliness issue with circumcised vs uncircumcised men versus what you are asking about. For me, personally, not the labia question would not be any kind of a problem
Don't spend a lot of time worrying about that kind of thing.
You are normal. It is not a turn off, it is a turn on. Asymetry is something very normal and wide spread for labias. Longer inner labias make you look more sexy, more nice, more mature. You are lucky ;) Some young boys who don't know the woman sexuality can make stupid comments. Don't take them into account, they don't even know their own feelings, they still need to grow up. You'll get them back later comming to play with the labias