I could really do with some advice. I'll keep it concise!
I have four sisters. One older, three younger. My childhood was extremely abusive. The police and social services were very involved, and I made it my mission to have my younger sisters put into care, but didn't succeed until they had already been badly affected. Two are now adopted, but it happened too late. My mum was mentally ill and obsessed with tiny babies, and my dad was spineless and would run away for weeks or just sit and ignore everything, even SS.
I got everyone out when I was 17. Older sister went into assisted living with her own flat, sister #3 went into an assisted B&B as she was too young for a flat. Both kept breaking the rules and lying about terminal illnesses, moving in unsuitable men, so both lost them. Both of those are believed to have the same condition as my mum. The two youngest were put into foster care and have been adopted, and I'm in contact with them via their parents, through letters and occasional meets. They're both quite damaged by their childhoods, to be honest.
I moved in with a boyfriend who turned out to be abusive too, but helped me to go no contact at least, after my mum kept reporting us to the police for things and breaking in. She went mad. I got therapy and cut them all off. The only contact they ever made with me was needing money, I must have sent them all thousands (that I didn't really have but felt responsible for them all, somehow).
Last contact was with sister #1, who said she had proof of a lot of money my mum had that was due to me (from an inheritance and in credit accounts she had taken out in my name), but she wouldn't give me. She wanted to meet in a park near where we used to live, late at night, and seemed rather unstable. She claimed sister #2 had slept with her husband.
Sisters #1 and #2 now have children, according to anonymous Facebook messages. My mum sent money to an American soldier she met on Skype, flew out to meet him and he didn't exist. My mum and dad are apparently divorced, and the latest message says my dad remarried a few weeks ago and sister #2 has another child. I don't know who is sending the anonymous messages.
The idea of them brings me out in cold sweats. I've been anxious since I saw the latest messages this morning. I have them blocked on everything, I live in fear a bit of them coming across me professionally, I've moved jobs a few times when they have (sadly my career path means I'm usually featured in things). My current DP is wonderful and hasn't met any of them (although knows about them).
It's been a long time. When they aren't messaging me, the scars have settled (physically and mentally). DPs family have adopted me as one of their own. I don't think about them much anymore. I keep a close eye on my own mental health and I have had a lot of therapy. Is it unreasonable to just ignore the messages? I'm 29 now - will I regret this when I've got my own family?
(I can't block them any further - they do already go into filtered message requests but I was stupid enough to check there for some reason this morning and I feel all out of sync)