There's never a time limit to fall in love with someone and to tell them that. It does take time to learn how to love someone with everything they have to offer. I don't ever think anyone is foolish to say the three words no matter how early it is in a relationship or whatever connection you have with someone. If you feel it, you feel it. Love is way to beautiful to hold back. It's all about spreading the love, baby. There shouldn't be regret or confusion to any emotion you feel after getting hurt. You live and you learn how to love and be happy again. There's no shame in loving someone who hurts you or treats you bad. You just have to get up and leave. Love someone who is going to return it. Everyone deserves love no matter what they have done in their lives.
Take it easy and keep moving on with life.