Our son will be 1 in a few months and we will be having a birthday party.
My husband's brother has a partner whom he has been with for 8/9 years on and off and they share an 8 year old together, they both have children from other relationships.
BIL also has a son from a one night stand that was born a few years ago that she recently only found out about.
Both me and my husband feel that we don't really want to invite her as she has a really bad problem with alcohol and is known to get very rowdy when she has had a drink and can get quite aggressive.
She has glassed people in the past and has been on tag.
We also don't want to be put in an uncomfortable position where she starts asking questions about the twins mother etc, we only found out when she did as it was kept very hush hush and only illy in-laws knew about it.
From what we understand it's not a serious relationship anymore and they live separately anyway but she has told BIL that she fully expects to be invited to the party considering our kids our cousins.
We feel she only wants to come to see if the mother of this new child is in attendance and to cause trouble.
We are not close at all and I have only met her a handful of times and when her kids have parties she doesn't invite me but invites my husband.
We are sending out the invites this weekend are we being unreasonable not to invite her?