It is mean.
Telling a person that they are not pretty or handsome enough for the person they are currently dating is a reflection of your own insecurity.
Think about it.
There is no reason for you to say such a thing unless there are insecurities that you possess about yourself.
This is a person who is already in a relationship, which proves that they are desirable to someone.
The person that chose to date them clearly doesn’t have an issue with their attractiveness.
As the old adage goes, beauty is in the eye of the beholder.
Although you think that this person isn’t pretty or handsome enough for the person they are currently dating, this doesn’t mean that their partner feels likewise.
You don’t know what their partner likes or deems attractive in a mate.
Although you don’t think this person is pretty or handsome enough, it’s possible that their partner thinks of them as the prettiest or most handsome person in the world.
Everyone has their tastes in what they are attracted to in someone else.
For all you know, this person meets everything their counterpart wants in a mate, from a physical and personality-type standpoint.
You are not in a position to know what it is that everyone else in the world likes.
Everyone has their own tastes in what they are attracted to in a potential partner.
Some tastes are similar, some aren’t.
But it is a big world.
To determine that this person is not pretty or handsome enough for the person they are currently dating, is to be far too close-minded and myopic in how you see the world.
Remember, this person has already been chosen.
They are in a relationship.
This means that the person that has chosen to date them sees something in them that you don’t.
What is most troubling about this is the fact that you said these words to this person.
Oftentimes, when these words are used against someone, there is a strong amount of insecurity within the person who used said words.
You said those words as a consequence of the insecurities that you have within yourself.
There is unhappiness in your life.
There is something missing in your life that you want badly.
You are unhappy that this person has gotten into a relationship with a person that you are attracted to.
You have been struggling to find someone like this.
All of a sudden, this person gets into a relationship with the type of person that you are typically attracted to.
This has left you unhappy.
It has forced you to repeatedly look at yourself, questioning your own attractiveness.
Over and over, you have examined your face and body, stopping at the areas that you aren’t confident about or dislike.
Despite these insecurities, you still believe that you are better looking than this person.
Yet, this person has gotten into a relationship with the type of person that you would prefer to date.
The type of person that has eluded you for a while, leading to frustration on your part.
Much of your reasoning behind why you told this person what you did, has to do with your own insecurities and what is currently missing in your life.