<human>: Can you succinctly summarize the text in 1-3 sentences?

Long time lurker, first time poster...

The other night I received a text message from my GF who I've been seeing for six months, the contents of which most people dread. It basically stated that she was having doubts about our relationship, and then went on to say that she knew this wasn't what *I* wanted, and that she was sorry.

Not really sure how to respond, I sent a slightly confused reply of, "What doubts? About me? Or about yourself?" 

That was Thursday night, and it wasn't until Saturday that I received her answer: "I don't think it really matters."

I'm still confused, and currently torn between whether to walk away or try and figure out what's going on. All related communication so far has been via text, but I'll pick up the phone and call her if I have to. I haven't spoken to her since, as I've been busy doing other things and trying to get on with life as normal.

Okay, you might say "Run for the hills while you still can! You're only six months in!"... but the sheer number of times I've seen people insist "You could have solved this if you two had just sat down and talked about it" makes me wonder if that's what should happen, instead of rashly walking away. Certainly there's some anecdotal evidence in this community that suggests the latter isn't such a dumb idea, but please note I **don't** *expect* things to resolve themselves in fairytale fashion.

As a bit of background, you know what else is awkward? We work together (in completely different departments, but occasionally have to interact on a professional basis) so this will definitely further test my resolve. She started here nine months ago, we hit it off straightaway but I spent three months thinking "gosh, she's kinda cute" and getting teased by my co-workers before I manned up and asked her out. Who knows, perhaps that's the root cause of her doubts?
<bot>: we're six months in, GF said she had doubts; is it rash to simply walk away or do I attempt to figure out what's going on? also, we work together, and that's how we met.