<human>: Can you provide a brief overview of the text?

I'm not really sure what I'm asking for, I guess just whether or not this is weird of me to think.

My parents have had a rocky relationship since the start. I'm pretty positive that they were just casually dating when my mom got pregnant with me, and then they just stuck it out for 22 more years, having two other kids in the process. Because of this, me and my sisters all have some really crappy depression and anxiety issues.

Last year my dad went kinda nuts with drinking. There was one night where my mom took my youngest sister (16F) to our grandparents, left me in the basement, and I had to sneak out the window because my mom didn't know if my dad would hurt me. I think I've told this story on Reddit before. During this period of time, it came out that my dad was cheating with at least two girls around my age. My mom stayed with him, even after we had a family discussion about divorce or separation. 

So things still feel just as tense around the house. My dad will get angry at meaningless shit, my mom will make off hand comments around me like "I wonder what it's like to be in a loving marriage" "I can't be bothered to clean because I just don't care about this house". But now they've been going on walks with the dog, bike rides, dad's calling mom "babe", kissing again. It just fucking sickens me. I wish they would have separated 10 years ago when I first realized how fucked their relationship is.
<bot>: My parents have had a really rough relationship, but now they're trying to love each other again. I hate it. Am I being entirely unreasonable?