Long time lurker - just looking for some confirmation that IANBU or a cf.
Its a bit of a long story but I'll try to keep to the point but don't want to have to drip feed later.
Divorced 9 years ago. We have 3 dc's now aged 15.14 & 12. Since the divorce I have lived on my own, although I've had a couple of relationships & a few casual flings. Exw moved a man in after the divorce & lived there for 18 months. Since that broke down she has had a few boyfriends that mostly lasted less than 6 months. I had dc's eow but also saw them during the week as I lived quite close. I gave her £600 pm maintenance. For clarity I am self employed & my earnings generally fluctuate between £45k-£60k pa - hers on divorce were around £15k and she also received child/working tax credits as well as child benefit.
The issue now is that late last year she started having a new boyfriend of less than 6 months stay over nights a week. Main problem with that (apart from not really knowing him & imo too soon) was that she didn't have her own bedroom & slept downstairs in the open plan dining room - no doors or curtains & in full view of the kitchen, so when my 14 year old daughter came down for breakfast she was confronted with them in bed together. Not doing anything as far as she could tell but not appropriate. This, and the fact he was often there when the 3 dc's came home from school, made the living arrangements intolerable for them. Having asked their mum a number of times to reduce the times he stayed over without success they asked if they could move in with me. Only problem was that I only had 2 bedrooms and when they stayed over one slept on the sofa & the other 2 would share a bedroom. This was obviously not going to be suitable for any length of time & so I found a 4 bed house to rent nearby at very short notice & we moved in just before xmas. Due to not knowing how long this was going to be for & issues with my current mortgage I left my house as it was so for the Iast 7 months have been paying both rent & mortgage, as well as council tax & utilities for both. My house is now on the market & when sold I will look to buy somewhere for all of us to live.
During all this time exw has not paid for anything apart from £100 spending money for 2 school trips (I paid £1300 for eldest to go skiing & £350 for daughter to go on a music trip). I stopped the £600 maintenance in February when it was obvious that the dc;s were going to live with me long term & due to my income I don't bother claiming child benefit,
so, now that I will soon be buying a bigger property, and thus a bigger mortgage - as well as seeing my food bills as well as everything else spiral upwards - AIBU to ask my exw, who earns a quarter of what I do, to pay me maintenance ??? fwiw, the dc's do not stay with her at all & only the eldest see's her - usually once or twice a month. My daughter has not spoken to her mum since xmas.