<human>: Can you give me a shortened version of the text?

We've been married for 2 years (together for just over 5), and in that time we've never had many problems. The last two months, however, have been a different story. We have a new baby that has had colic, and that has been rough on all three of us. Pretty much lately we've been arguing constantly. I think it is fair to say that we've both been miserable lately and are taking it out on the other. With that in mind, last night we had an especially bad fight - the worse that we've ever had during our entire time together. It escalated to the point where she asked me if I regretted that she just didn't die in childbirth, and without really thinking, I said yes. The answer, I think, shocked both of us. I tried to apologize and tell her that I didn't mean it, but she locked herself and the baby in our bedroom and told me to leave. I wound up spending the night at my sister's house.

I've spent most of today trying to apologize to her, but I haven't gotten a response. I don't know how to express how sorry I am to her. I feel like nothing I can say or do will be enough, but I know I have to try. Is there anything I can do other than just apologizing? Will she be able to get past this?
<bot>: wife asked me if I preferred she die in childbirth during argument, i said yes. How do I make this up to her?