So on my FI's side his uncle X and aunt Y are going through some problems. They are legally seperated and living apart. We were going to invite aunt Y's parents becuase they are close with all of FI's family. Uncle X and Aunt Y's son and gf were also going to be invited. Everyone received a STD, which was way prior to all of the problems. I know we are sending Uncle X his own invite. My question is do we send Aunt Y an invitation even though I don't know her new address? Also do I send Uncle X and Aunt Y's son/gf an invite because apparently he moved with Aunt Y? Do we send Aunt Y's parents an invite, because we sent them STD? I feel like if you send someone a STD, you need to send them an invite. Sorry if this is confusing. I know what I think but I wanted to ask some one else for their opinion. If you don't understand something let me know. Again, sorry if it's confusing. TIA!