Well I just deactivated my facebook account...im going dark in cyber world, except here of course..lol
I deactivated mine for awhile as well. there are many different opinions on blocking your spouse etc. I personally did my H was always screen shotting posts of me being out or tagged at places. Id rather him wonder what the boys and I are doing
I know it is hard to hear what your FIL is telling you but remember it is her dad. My sitch has gotten very complicated in the beginning because of my MIL being very involved (her choice). Her and H are now not talking and haven't talked since when he first left.
I would just validate what he's saying but don't fuel his fire. If he is feeling that way I'm sure he would run and tell W (I'm sure he would have good intentions). You want to be mysterious and as the advice I get make your spouse think you've had an awakening. You don't want her thinkig you're pining over her still.
And yes as a woman I'm sure she misses you. I'm sure she thinks of all the times you have. Gone together and now your absence weighs on her heart.