I know IABU, help me see the light

[LittleBoPeephole]

So, I'm redecorating our house and have some space for a spare room as DP doesn't need his office anymore. Weach both live far from home town although my own mum will be the one staying in said spare room 99% of the time.

Mum has been single all my life. Dad left when I was very young so I've only had mum and siblings as company. My mum had recently found a new partner and I've never met him or spoken but my mum is sure they are going the distance and will eventually marry. That's great for her and I genuinely want her to be happy.

But here's the AIBU: would I be unreasonable to buy a single bed for her knowing that she eventually want to bring her boyfriend? It grosses me out to think about them two near each other let alone sharing a bed.

It sounds rather like you still think of her as your property, you will only give permission for your mum to have a boyfriend if youve met him and given your approval.

Youre trying to passive-aggressively prevent him from coming by only providing a single bed - if things get serious enough between them, youre running the risk of driving your mum out of your spare room and into a hotel.

Look, stop worrying.
That man isn't hurting your mummy.