I faced a trauma when I was 13 or 14 year old. I witnessed my beloved mother having a affair with someone because of her being constantly targeted in the marriage. Even though what happened to her in marriage was wrong. This affair of her lasted from almost 6 to 7 years or more I don't know. I went into severe depression overthinking about it and it stemmed a problem in me becoming a loner and a person unable to trust people fully... I am 31 year old now still unable to get over it as I could never muster the courage to do anything about it.. I would be traumatized by the presence of that man in our house many times even in my presence they would be together in the room.. I got high blood pressure due to the stress and wanna address the problem by comforting the 16 year old me. But still can't find an answer without speaking bad about accepting bad things about my parents. Any suggestions?
I am so scared that I don't know if I am a suitable person to marry someone..