My mom's BF is leaving her🤷

Im not even mad she cheats like crazy and they are so toxic for eachother. Wish she was different especially since my 12 year old sister thinks cheating is "funny" now and that some people "deserve it" she has watched them for 5 years. I just hope they are finally fucking done. 🤧🤷 Worn myself out working as the parent and not the child but now im 25weeks and 4 days with my own kid and im ready for to lose their drama