Is it unreasonable to ask my husband when his son will leave?

Somehow misread 6 months as 6 years & couldn't understand why everyone was saying you're being unreasonable so went back & checked...

Sorry, 6 months is nothing at all - YABVU

My sons will always be welcome to move back home for as long as they like so I totally understand your husband offering this to his son. There will be a time where he doesn't need the support. I can't imagine most people wanting to live with their parents forever. You married a man with children; it is what it is.

Is the house the previous family home or is it a new house you have both set up together?

It's pretty normal nowadays for young adults to remain at home for some considerable time.

What's he like? Does he help out? Not make a mess? Do chores? I think I agree that this is probably to be expected if you entered into a relationship with someone who is a parent. It's not the 1970s where they move out in their late teens

It is the situation she married into though, marrying someone with a child. Doesn't matter if they are now an adult.

It’s never going to be just the two of you, though. One of you has a child (no matter their age) so as long as they’re alive there will always be at least three of you.

Even if your husband’s son gets married, moves to Australia and has six children of his own - more than half your husband’s mind will be with them, forever.

As others have said - you married someone with a child.

Ywnbu to ask what the plan is for the future, is his son saving for a deposit, planning to move back to London etc without making him feel unwelcome.

The only alternative is to either make him feel unwelcome or give an ultimatum, but I'm not sure your marriage would last that, any parent worth their salt would choose their child over anyone.

Till when?

I don't think it would be unreasonable to ask what the two of you can do to help him when he moves out rather than ask for how much longer is he staying

Does he pay? Help out? Do his own washing?

He moved in, so it was never going to be a few weeks visit. Perhaps there should have been a more clear discussion from the start, but it's possible that your DH thought you would interpretate moving is as semi long term, so didn't feel he needed to clarify it would be ongoing.

I understand it's a big upheaval for you, but your DH is enjoying spending time with his child, while also supporting him through a hard time. That's exactly what I'd want to do if my child ever needed me, and I would always put my bond with DC above any partner who made it difficult.

If you do raise it, you need to tread very carefully, and frail it more as "what are your plans for the future" not "when will you go away"

It's his son, they come as a package.

Of course the child comes too when you marry someone, but in this case, the son is a man. I would start to be getting worried too, OP. The son may hang around for years yet which may be lovely for the father, but not so great for OP suddenly being a third wheel when that is not the situation she married into.

You'll have to tread very carefully, OP but you could mention it.

I second what Arse said, you married a man with children, my children are always welcome back, this is their soft place to land should it all go to shit. Maybe it would work to everyone's advantage if the son lived very local to you so that he can still have that relationship with his Dad where they work out together etc.

As a parent I get a lot of joy in spending time with my adult children and love that they enjoy chatting to Dh, their Dad. They still live at home as they are 22 and 19 but I am hoping they live close enough that we can see them often.

I think you do need to have a talk with your Dh to talk about supporting his son moving out and moving on, better than saying I want him to move out.

This.

I enjoy having my son around. He’s one of my favourite people.

I think your Dh and ds are entitled to enjoy time together.

When you marry a man with children, the children come too.