It’s a hard situation, it is very much understandable and as you said it’s a tough time for them so you have to give them their space, which does actually give you a little bit of a time and to completely leave them is a bit hard and bitter in a way as they are you loved ones.

It’s like you can’t leave them totally because that might not be a dilemma the future you might want to be in.

Give them and yourself the time help them through out of the tough time they are going through and see how it goes afterwards because we all know tough times do change people, may it be in a good way or a bad way.

But as for during the situation right now, and take a break when it takes too much of a toll on you and be back, as this might be the time they want you the most and this could take your relationship with them to the next step.