Bit of background - parent a
A and B where together a long time, 2 kids now 5 and 7. Relationship ended. Parent A now in long term with new parter, B is married with a baby.
A has kids Monday tuesday thursday and every other weekend (fri-sun)
B has kids until 5pm on Tuesday, wesnesday and EOW.
Parent B brought house to be closer to A and kids school (10 minute walk). 1 year later A and new partner brought a house 20 minutes (8 miles) away and moved the kids into the new local school.
Parent B is happy to drive out and collect/drop kids on all occasions except Tuesday as the drive to drop them back doesn't fit with their work. A decided to move - A should pick up a bit of the extra driving.
Parent A doesnt want to drive to pick them up as its a 35-40 minute round trip and wants contact to stop on Tuesday with B.
Both feel put out. Both thinks the other is BU.
Who do you think is BU?