Wrong does not excuse wrong. Other people’s wrongdoing does not excuse your wrongdoing. When others sin, this does not excuse your sinning in response to them.
When others hurt you, lash out at you, reject you, abandon you, let you down, disappoint you, and / or do any kind of wrong toward you at all, this does not justify your responding to them with sin.
Choose the way of the Lord Jesus Christ.
Love them, bless them, do good to them, pray for them, and make sure you forgive them.
“”But I say to you who hear: Love your enemies, do good to those who hate you, bless those who curse you, and pray for those who spitefully use you.” Luke 6:27-28 NKJV
“Then Peter came to Him and said, “Lord, how often shall my brother sin against me, and I forgive him? Up to seven times?” Jesus said to him, “I do not say to you, up to seven times, but up to seventy times seven.” Matthew 18:21-22 NKJV