Hi Jim,
Thanks for answering my question. I had to ask cos my brother was in the same situation before. He's working abroad and his wife worked here but lived in a different place. The kids were left under the care of my brother's in-laws. He had always told me how difficult it is, since his in-laws are not very good with computers. He only got to see his kids on weekends when his wife is home. Fortunately, things have changed for them.
I understand how you feel about your Nanay but I have to say it is better than leaving the kids with strangers. It is said that grandparents love their grandchildren more than they love their own children, which I don't think is a bad thing.
I'm glad to hear Ana will be home soon and you will be able to see them more often.
Take care and I wish you and your family all the best.