Guess I just want some idea of what to expect.
My parents are both around 60, married since early 20s. They have me (mid thirties), plus two siblings, one 30 one just turned 20. Big gap! The 20yo started university in September & so is the last to leave the family home. Now it's just DM & DF. They get on OK, I haven't lived with them for a long time, remember some arguments, nothing crazy, but definitely not a warm relationship. Now I have a DH i find their lack of affection for each other quite striking.
Both still working in professional academic jobs (not together/ same area), probably will retire late because they both love work.
DB said living with them before he started uni was like living with two people with totally separate lives who were basically civil to each other...
I am close to siblings and mentioned to them that I thought we might expect a divorce soon now last child has moved out. DB agreed, DSis was a bit upset and didn't. I remember starting uni and quite few friends had their parents announce divorce during first year. Honestly I thought mine might, although they had pretty young children still.
Am I projecting because of my experience with uni friends or is this a real phenomenon?