Ok.
so, when did you separate.
is it really the case you only have your child every weekend?
no holidays? No mid week contact?
The arrangement, however long it may have been running, is poor as a start point.
you become Disney weekend dad, mum is having NO quality time.
so I suspect, she has needed a holiday, and I would guess, has been met with resistance.
unless there are significant safeguarding concerns, there is no reason to keep a child from another parent.
whilst yes, the previous arrangement has broken down, perhaps this is a good time to look at a a joint arrangement. Split weeks, week about in holidays.
whilst a court won’t look positively on someone going away without notice, we don’t know her side here. Has she asked repeatedly for you to take leave?
what are your holiday arrangements?
they also won’t look fondly on someone blocking contact with the resident parent over a holiday dispute