Matt still has occasion to speak to his mum, and we have had glimpses of the Nan we knew, but on the whole the relationship is no longer a natural one and is strained. It leaves you feeling drained as you feel you have to always be on your best behaviour, be pleasant, be civil, be conciously aware of coming across as normal and happy to dispel any searching in them to find a fulfillment of any personal prophecies they'e made concerning you, so they can't turn round and say "I told you so".
You perfectly describe my relationship with my dad. Draining.