Love is unconditional. Love is respect. Love is affection. Love is contentment. If one of those things were missing in your relationship then you have to think twice or more.
Remember that love is a commitment of two individuals. Life is not always rainbows and butterflies and loving too much could destroy oneself. Don't be a victim of verbal abuse. Never beg for someone to stay because if they want too, they will.
It's better to choose someone whom you can be with until the end. Someone who will never choose to leave you when life gets hard. Someone who will choose you over and over again.
"Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It does not dishonor others, it is not self-seeking, it is not easily angered, it keeps no record of wrongs." 1 Corinthians 13:4-5
In any given situation, knowing your value means feeling that you are an equal with anyone you interact with: clients, bosses, colleagues, or friends. You are not a supplicant. Nor do you feel privileged to be with someone or to work in a particular type of organisation