Hi Niffler. I discovered your story this evening and had quite an emotional rollercoaster reading what you have gone through. Such a sad story but incredible to see the undivided support you gave to your DH and the obvious love and connection you had with one another. I think that is a rare thing to find, I am sorry that it was taken away from you.
I am so sorry that your PILs feel that it is ok to treat you in this way, they seem to be acting very selfishly. Obviously they are mourning too but should not be offering you support if they don’t intend to see it through. I hope you can find somewhere to stay ASAP as it seems as though it is always a struggle when you stay with them. Is there anyone who could look after your ddog for a while so you could stay with your own parents? I know it would hurt to be away from your dog for a while but may be less painful than having to put up with an unwelcoming home! Seems like the last thing you need.
I wish you all the best anyway in the coming weeks and months. I have admired your strength through such a terrible time.