Roommate Pros and Cons

One the plus side -
- she pays her rent on-time
- she does all the dishes, takes out the garbage and vacuums (never asked; just her style)
- she likes my dogs and treats them well
- she empties out the doggie poop container on the patio
- she is sweet-hearted
- I can't afford not to have responsible roommate...
- she provides great fodder for my blog

On the negative side -
- EVERYTHING she does annoys me
- her cat scratches MY belongings
- she craps more than any person I know and doesn't use the fan
- she starts conversations while she's still in the hall so she is constantly interrupting my TV watching, computer time or book reading and doesn't seem to "get" how rude that is
- she always wants to know my schedule and is constantly telling me hers - some of that is reasonable but not to this extent
- already posted about the copying me thing
- she loves to gossip and tell me things about her niece, daughter, clients that I just don't care about
- she complains about her age a lot
- she's accused me of stealing her stuff but when I told her I couldn't believe she would stay in a place where she thought the landlord was dishonest, she got flustered and said she didn't want to move and almost started crying
- she's always saying stupid, pithy expressions like "time to head back to the barn" which she decided to take time to tell me meant returning home though she was in the kitchen at the time she said it so what she was really saying is that she was going to her room.

So - what would you do? Put up with the petty annoyances to keep the responsible roommate who's basically volunteered to be the maid. Or place an ad and gamble the next one will be both responsible and non-annoying? Such a dilemma....