<human>: I've been living with my roommate who we will call R for about 8 months. R and I were friends before I moved in. The issue is that R has a dog and has not picked up dog crap in the back yard for 8 months, and that is after winter as well, which most dog owners will do right away unless they have enough land, we don't.    

I keep asking R to do it so that I can cut the grass before it gets to long. Every time R says they will do it by x date and that date comes and goes. To me it's a giant slap in the face, when R asks for something to be done or a favour I do it, but when I ask for something that I shouldn't have to ask for every week R does nothing.

 I don't like conflict but I'm trying to fix this before I just leave since I have another place I can go and R can't afford rent by themselves.

Condense the text into a few key points
<bot>: roommate won't clean up after dog, makes it hard to do my job of cutting grass. I take it as a lack of respect and a personal insult