First AIBU - please be gentle.
My SIL is in the heartbreaking situation of having to have her baby adopted, as she can't care for her as a solo parent with complex MH issues. She is struggling to come to terms with this, and often posts long rants about it on FB.
There is one of her FB friends, who I don't know at all, who always writes messages along the lines of "don't worry, it will be alright, you will get her back". Long posts about how everyone can see they should be together and justice will prevail.
She seems like a nice, if very fluffy woman, who is trying to share comforting words. However, we know it is not going to happen and baby is going to be adopted. There is no happy ending here. SIL is in denial about it, and takes this woman's words as messages that it will be ok and her baby will be returned to her.
WIBU to send a private message to this poster and explain that her messages aren't helping at a time when we are trying to convince SIL to accept the reality of the situation. False hope (especially when the woman knows absolutely nothing about the situation, other than what SIL has posted) is really unhelpful, and will only make the heartbreak even more harrowing when the adoption order is finalised.
OH can't deal - he is finding the whole situation so heartbreaking, and he doesn't go on FB anyway.