So I've been seeing this woman for a month or so and it's been known from the start that she has a boyfriend.

I always held a very relaxed/uninterested frame about the whole situation and never made any effort to engage in any conversation about it. But she decides she feels too guilty about the situation and ends it with him..

I received a text explaining that she's broken up with him and I'm not sure the best way to handle it.

She's not a "texty" person and the message she's sent has nothing else other than the details of her breakup. So she's obviously looking for a response/reaction to the situation.

How would you respond? Ignore it and make plans to meet her again? Ignore it completely? Address the situation in some way?

For reference.. The text was along the lines of "I'm just letting you know me and <name> decided to end things today. I actually feel a lot better about things now. I'm quite relieved about everything"

Thanks for any insight.