Without wanting to go into too many details (will be outing), I am trying to figure out how I deal with the situation of an absent colleague. I was appointed to a new role in my organisation at the beginning of the year, and a new person was recruited into the same role for a different part of the organisation. One of the first things this person told me (we share an office) is that they suffer from PTSD. They have missed an enormous amount of work this year (about 25% absence) and on one occasion, sent me a WhatsApp that they were having such a hard time that they were thinking of doing something drastic. This was dealt with through the appropriate channels at work. During their absences, people from the other part of the organisation have come to me for assistance because this person is unreliable. As a result, my workload has increased and I have been put under enormous pressure. I have had regular conversations with my boss about this, and my boss has been very supportive and helpful in navigating this situation. The person has returned to work and I have been invited to a meeting with them and their manager. I asked for my manager to be included in the meeting, and this has been done. There is no agenda for this meeting, and when I asked the colleague what it is about, they said that is it about working together going forward. This is a huge simplification of the situation, but I would appreciate any advice about how to tackle this meeting next week. Thoughts?