its better for you to tell to your boss honestly what is happening, and I believe he will understand your situation.

Saeedkan is correct, your boss finds you suitable for your job, that is why he is having a hard time, or even already decided to keep you within the company.

I can suggest, apply for an EMERGENCY LEAVE, that way at least, you can assure your boss that you are coming back.

Once in the Philippines, way all your options and decide if you are coming back or not, but still THE BEST WAY IS TO COME BACK, of course, for you and for your family's good.

Definitely, your boss wants to keep you, so the best way is to assure him your coming back. In that way he will have peace and no worries.