When dealing with humans, you need to realize that a nice person is not always a good person.
Someone can be a nice person but not a good person.
A nice person is a people pleaser but in the secret, h/she is the devil's incarnate.
A nice person can hang around you because of the benefits derived but if given the opportunity to betray you, h/she will betray you.
When choosing a partner, conceive the fact that a nice person is not always a good person. When you understand this, you won't be so excited about nice gestures, you won't be excited about interesting writeups the person pens down, you will be more concern about practicing what they preach. You won't be so excited about knowledge of faith, you will be more concern about implementation of faith.
There are nice people on the street, in the family, disguising as good people.
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When you fall into the trap of a nice person disguising as a good person, time will certainly reveal the truth.
You can fake being nice but you can't fake being good.
The essence of this writeup is to remind you that a nice person is not always a good person.