My mom was dating a tomboy when I was 7-8 years old and my parents were still married. My mom left the tomboy a few months ago, but I think they are together again. It’s really upsetting me because my parents fight a lot now. Also, my little sister is spoiled because of him/her. The tomboy has brainwashed my little sister into thinking that he/she is better because he/she gives my little sister presents. He/she has done this to me before and once I fell for his/her trap I barely saw my mom because the tomboy took advantage of me and I would let my mom see him/her.