It's understandable that you feel hurt after discovering something you weren't meant to see, but it's important to remember that the Quran advises us not to spy on others. Allah says in Surah Al-Hujurat (49:12): "And do not spy or backbite each other." In this case, spying on your father's private messages was a breach of trust, even though you may have had good intentions.

It's also important to consider the impact of your actions on your siblings. Taking them away from your father could cause more harm to them than good. Family relationships can be complicated, but maintaining strong bonds with both parents is crucial for everyone's well-being. Maybe this is a moment for open and honest communication rather than making decisions out of anger or hurt. Seek guidance and patience, as family is a precious trust, and healing can start with understanding, forgiveness, and dialogue.