To those who are with the love of their life

So I believe that I have met the love of my life every single piece of my beginning knows he’s it we dated after life brought back together but we have split (no cheating just some emotional stuff) we remain in contact every single day I’m involved with his family and even though I try to move on I know it takes time but I’ve been dating other guys and stuff but I still believe he is absolutely without a doubt the love of my life

So how did you know if they really were the love of your life and