What would you think?

i don't know if my wife is playing me or is just really confused about something in her life. she left about 9 months ago for a month. she came back. i bent over backwards for her. somehow though i couldn't do enough. i really tried. she kept getting upset at me and nothing was good enough. i finally started yelling back and saying i can't do anymore! something really bad happened (unplanned pregnancy and her having an abortion...her choice). i couldn't do enough to take care of her and again she said "you don't care" and left me on sunday. i don't get it. right after the abortion she said"please don't ever leave me. i love you so much". it felt great then she left on sunday after accusing me of taking more care of the kids than her over the weekend. i had no choice! I couldn't be superman plus i was emotionally spent as well from the whole thing! now i found out she is trying to buy another house 5 days after she left. What really happened here? I can't make logical sense of it