There’s a good description of personal and interpersonal stress and suffering in an article by Gregory Kramer that you can find here: The Truth of Interpersonal Suffering. The article provides a good introduction to Kramer’s approach to personal, interpersonal, and social stress and dissatisfaction as well as an approach to practice that can free us from stress and dissatisfaction in those different facets of our lives.
There is a good collection of Buddhist articles that address interpersonal conflict and the interpersonal stress and suffering that they lead to. The articles also address how to find better ways of responding to those conflicts. The approaches in the collection come from a variety of Buddhist traditions and include articles from a number of well-known teachers (e.g., Pema Chodron and Sharon Salzberg). You can find those articles here: Interpersonal Conflict Archives.
Warm regards,
Insight Meditation of the Mid-Columbia