In the beginning you needed only one thing to survive. The love of your parrents, if your parents loved you as a child they did they're best to provide to all your other needs.
However if your parents were corrupted, this made it impossible for them to love you.
Love doesn't exist under corruption, if love is an involuntary response to virtue, and virtue is the opposite of vice. This not only means that someone with a lot of vices is unlovable, but because vices happen under denial, the person with a lot of vices is unable to differentiate between virtue and vice. To that extent a corrupted person is also unable to love others.
For example if you are eating healthy, someone who is eating whatever whenever might look at you like you are stupid and you are wasting your life. It is going to be very hard for them to understand why you don't just eat whatever gives the most amount of pleasure.
Even though you are demonstrating virtue it is not going to inspire love in someone who holds a vice opposite of your virtue.
Whenever you are exercising a similar vice in the presence of another corrupted person, you will receive they're approval, but that it is a completely different phenomena than love.
As love is all about virtue, and virtue is about sustainability. Than the purpose of love is sustainability. If you receive some sort of positive feedback from someone for any behaviour that it is unsustainable, you can be sure it is not love.
People who approve of your vices don't love you at best they are accomplices in crime, and as a result of your relationship with them you will slowly deteriorate and end up in a much worse place than you are today.
Equally if you try to win the approval of someone who is corrupted you will lower yourself at their level and become corrupted yourself.
Growing up with corrupted parents, corrupted yourself, because your parents encourage you to develop vices instead of virtues.
That might cause you to have problems earning love as an adult.
Luckely this cycle can be stopped as much time you learn to differentiate between vice and virtue.