Every couple needs love compatibility traits to succeed. 

There is, however, an alternate method for finding a romantic match. 

In your search for a life partner, you may have come across someone 

who seems like the perfect fit, but how can you tell whether they are truly "the one"? 

Couples therapist and Couples Institute co-founder Peter Pearson 

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outlined the keys to a happy marriage. To which he promptly replied: chemistry. 

He did say that chemistry isn't everything, but that it might be difficult to overcome if it isn't present. 

When one partner has more chemistry than the other, it can be challenging to overcome.