Hello Jaynick! You'll be happy to know that the couples's timing in the situation you described is nothing to worry about. Here's a great quote from arnie in the VF2 Android forum:
If you'd like to view the entire thread, it's located here. I hope this helps!

I've got a couple things that annoy me one is the constant illness my lil peeps get I they get sick from just itching!!!! Another is they earn money slowly specially while playing the game I noticed you make more when your gone that's kind of odd I mean its like their trying to drive you away from the game

I think the main reason that the peeps earn more while the game is off is that the peeps are less likely to be distracted by random things like their kids switching lights on and off or rattling dishes, so they complete more work actions. At least, the AI calculates how many actions they would have completed, based on their experience and a few other factors, but not interference from the kids!

I agree about the illness - it's a nuisance; I'm also playing VV1 on my iPad at the moment. Every time I open VF2 someone is sick, often two more more. In VV1, with four or five times as many peeps, I only get the occasional sick villager, although admittedly they can heal each other provided a peep or peeps have enough medical skills.

vf2 needs to update. i'm falling asleep here.

There is a change in the ads we watch to earn coins. When the ad finishes we don't get the X show up to close the ad. Instead we are taken right to the download page. It is only fair to tell you that this will not increase the chance that I will download the game, if that is the reasoning behind it. I occasionally see a game I might want to try, but if I feel I'm being manipulated into trying it, I will refuse.

Hi pth!

I understand! Ads can be pretty out there! Unfortunately, we have no control over how the ads are made, and what mechanisms they use.

However, if you don't mind filling out a support form (and including the game information that you were playing when you encountered that ad) we can certainly look into that ad supplier to see if that's one that we want to keep.

You can click the "Submit a support form" link in my signature.