There are no such guarantees in life in this matter and many others.
You can use the information and evidence that you see. How he or she treats you and acts with you.
That is all anyone can do. Some people are fortunate, others less so.
The KEY to true Love and Romance are not like recipes that you can use for that perfect relationship. That Key is unique to every couple and relates to their social cultures and values. Almost every human relationship has its ups and downs. When you can focus on the important and valuable stuff that makes it all worthwhile, rather than curse the stuff that causes pain then you are on the way to finding that right person.
The cure for me is that you just now this guy is the right one and you know it
when he does not treat you right
You just know.
he respects you
Then maybe that guy isn't the right one for you. There are plenty of guys out there and if he is the perfect guy for you, he will like you for you. I know that is a bit poetic but it is true.
If you have question that then he's not the right guy
You will know if he's the right guy if you get feelings that you have never had before.
I new when I went out with my guy friends to party and I couldn't wait to get home it was right.
You know you have met the right guy when you can be your total self around the guy. He makes you laugh , and sometimes cry but in the end he's the only one you think about , and your heart has no regrets just love. Answer You will feel totally different than you ever have before and you have no interest whatsoever in any other guy. You will feel amazing.
Once you start dating, and the guy seems really interested and nice and funny to you, then you'll know ;)
Will Rappaport
In a past life he was one of the three little pigs the one who made his house out of straw you know that guy right? ;P