Tell the Wolves I'm Home by Carol Rifka Brunt

This book was my choice for one of the Meetup groups I am part of. The story is told from the point of view of 14 year old June and is set in 1987. Her beloved uncle Finn dies young and "unexpectedly" and there is a man at the funeral that her family avoids. June has an older sister named Greta who seems to know everything before June does, but doesn't try to explain what is going on to her. Eventually, June finds out that Finn had AIDS and the mystery man is Toby, Finn's longtime boyfriend. June finds out that not all initial perceptions of people or situations is true, and learns more about Toby as they bond together over their shared loss of Finn.

Recommendations:
If you liked Eleanor & Park because of the 80s references.
If you liked The Death of Bees or The Silver Star because of the sisters' relationship.