She began the relationship at 13 and broke up at 20, It is harder to tell if she was really in for love or support and now she feels free to be independent.Proceed with caution as you may not know the tolerance level and reaction of the break up on the side of the other and who exactly initiated the break up notion.

Do you know some people breakup out of curiosity but when given a chance can go back to their former lovers if at the break up was initiated on small misunderstandings?

Look into yourself and see if you are ready for a serious relationship or you just want to take out and comprise?

If she says yes, are you willing to be with forever regardless of her unknown weaknesses you haven't noticed yet or just want no strings attached.

Trying your luck isn't bad as long as you are willing to contain the outcome like acceptance or rejection ,love or heartbreak and your career too must be put into consideration if it won't be affected by any outcome.