<human>: So this happened yesterday. My girlfriend got her period and it was especially bad. She was in a lot of pain and was just chilling curled up on my couch. Well apparently she bled through her tampon and stained my couch. She seemed embarrassed but I assured her it was no big deal because I hate that couch and was planning on throwing it out anyways. It's a shit tier couch, no big deal. I thought that would be the end of it right there, but after she got out of the shower I asked her if she wanted me to throw away the pant she was wearing because they were already messed up anyways. Now this takes a bit of backstory:

About a month ago, I was tipsy and accidentally almost cut my finger off with a power saw. It was really stupid and caused A LOT of drama between me and the girlfriend. Anyways, when it happened I was wearing some basic track pants and they got covered in my blood. She was wearing those same pants when she had her "accident" and refuses to throw them away because they have both of our blood on them????? What???? I kind of laughed it off but it really creeped me out. She also later told me she was marking her territory on my couch to keep "the bitches" out. I hope she's joking?????? I know she has mental problems, I don't ask and she doesn't bring it up because it bums her out to talk about, but do you think this is a mental thing???? I usually give her a pass if it relates to her mental illness if it's not too bad.

Can you condense the text into a few key points?
<bot>: Girlfriend bled on my couch, refused to throw out pants she was wearing because it had mine and her blood on it, I know she takes lithium, could this be a bipolar thing???