Deep sense of sharing. You always want to share every part of your life with the one person you love. You want to always be there in time of need. Even though it's obvious that both of you can't share somethings; to you, there should be a way to share. This is definitely a symptom of love.
You never get bored of the person. You are always happy and proud to spend time with the one you love; whether both of you have something to say or not, there is this joy of being together even in silence. Wow, that a great sign of love existing between you two.
Acceptance of flaws and complaints. Having in mind that no one person is perfect in this life; You are always ready to accept and tolerate mistakes from your partner and quick to forgive immediately without much complain. Such characteristics in you show the love to posses.
A distorted sense of time when you are thinking about the person. You never care to take note of time when you are with the person you love. Three hours spent together seem like thirty minutes to you and you long for more time which might not be enough. It means that love is on the way.
The world seems to be a better place. When you are in love and the love returned to you; you would be so glad and would not want to move an inch away from the person that make you feel such love. Everything must not neccesarily be rosy, but your just happy and contented. That is a great symptom of love.