How will you know if it's true love?

one can't really say until the day you'd find yourself growing old with that one person despite the challenges in life.

If you know that you would do anything for the person in question, I think that's the clue you need to realise that it is true love. If you would die for them, then obviously there's no question about it at all. You would want to spend all of the time with that person, and then miss them more than anything when they weren't there with you. The only thing to say really is that when you find your true love, you will "know". That's the only way to describe it. It's when they make everything and anything seem right, as long as you're together.

I don't think you need to know really. Sure you can imagine yourself living with the person and make your decision that way but if you do that you stress too much on the importance of having a perfect relationship with that person, something which will always have negative consequences. Just have fun with your partner and be blind for the outcome. Enjoy the moment. :)