Sometimes it’s not possible to stay up to date on everything that’s happening in extended family’s lives, especially if there’s a lot of members and their relationship is distant. Some people might even not be interested in keeping up with extended family, as it’s not something they particularly want to do.
Case in point is this woman’s husband, who apparently only recently found out that his SIL belongs to the LGBTQ+ community, having known her for more than 12 years. After learning such information, he started behaving strangely homophobic towards her, which had something to do with his bigger secret.