Me and my girlfriend have been together for 5 years, we bought a house together 3 years ago. She has 2 girls and I have 1 boy. I have worked 3 jobs since we have met and covered all the bills as well as payed for the majority of a court case she went through with her ex which was around £25000. My girlfriend worked part time during this and covered the food bills. She has recently got a decent job with a good salary so I asked about sitting down and looking at our finances as I am left with no money by the time it comes to all the bills being paid. My suggestion was to pay a percentage each which reflects our wages and also have a pot for home improvements, holidays etc. when it came to sitting down I was told I am controlling. Within the same couple of weeks she says to my that she has booked a week off work at her new job so we can all go on holiday. After when checking everyone's calendar my son is away with his mum for the first 2 days. So I said about booking a holiday a couple days later so we can all go. She said no and that she is going away with her girls on that date no matter what. I have said that this is unfair and I do not have the finances to just go and say right I'm going away with my son and book a holiday. She has now gone and booked the holiday with just her and her 2 daughters which leaves me and my son not being able to have a holiday. I am thinking of leaving the relationship because of this. Do you think I'm wrong for feeling and being like that or am I over thinking it?