ISTP Dad and ESFJ Mom.

Due to strange circumstances as a baby, my Mom hasn't always been close to me. My older brother (INFP) was there for me at the right place and time, so we bonded immediately and very tightly all the way until 13. After that, he started to individualize and go his own way.

Loneliness pushed me to seek affection from Mom, and her marriage finally going to shit pushed her right back to me. Through that, we discovered how much we actually had in common and remain best friends nearly 10 years later.

Dad and I could never get close because he has thrown himself into his work for his whole married (and now divorced) life. He's a genuinely nice person who shares similar interests with me but hasn't actively tried to be close, and never really made an effort to be a part of my life (education, personal problems, etc). Feels more like some roommate that I stayed in contact with than an actual parent.