<human>: Give me a shortened version of the text

I'll try to keep it short but ... eh who am I kidding. Basically my co-workers' work ethic has been waning. It started shortly after she returned from vacation but that was close to 2 months ago now.

We are supposed to share responsibilities such as answering the phone, handling clients, taking tours of the building (we lease high end rentals), and other mundane office tasks. The objective of any rental property is to keep it occupancy level as high as possible and ever since we stabilized the property she has lost all enthusiasm. She basically just browses/chats on facebook all day, texts, and reads magazines. Whenever she answers the phone she sounds distant, cold, and uninviting. Whenever she takes a tour she is abrupt and skips her entire sales presentation. This seriously hurts the traffic generated toward the property and obviously doesn't convert many leases. In fact, she hasn't had a lease in weeks. She used to convert like crazy.

Our manager doesn't seem to have picked up on it and I am honestly debating whether or not to mention it to him or to take it up with her first. She has a quick temper and can be set off very easily if she feels self-conscious. I don't mean to sound cowardly but I have to work with this woman daily so I don't want to jeopardize our working relationship. Instead, I feel like the manager should take it up with her so she feels it coming down with some authority. I don't necessarily plan to rat her out about her internet browsing because I'm not innocent myself. There is always downtime - like right now while I write this. The bottom line is that I like the woman as a co-worker but can't understand where her productivity has gone. I don't want to have to bring it up to my manager but I want to see the company succeed.

Anyway, venting feels good and any advice would be appreciated.
<bot>: co-workers productivity has fallen off. she is typically a good co-worker but has started dropping the ball. can't decide whether or not to mention it to my manager.