Child of seperated parents, age 6. His parents have been separated since he was 4 but his dad is still in his life and has him every week.
The mum met somebody new when the boy was 5 and that man now lives with them, the mum is expecting a baby with the new partner.
Whilst at his dads house the little boy drew a picture of "his family" and drew his mums partner as dad, leaving his bio dad out of the picture. When asked about it, he confirmed that yes "Stuart" is his dad.
Bio dad wanted to have a conversation with the mum about it but mum doesn't see it as a problem as "Stuart" lives with them and has naturally fallen into the position of 'dad'
Is the man unreasonable to be upset?