I agree. I think it's difficult. DH and I have now been together almost 13 years, we got married 2 years ago.
But the first 5 years together lived separately. DS were 5 and 7 when we met. They always liked him and there were never any issues with them getting on.
But he had never wanted children and he and his ex wife and him and decided not to have children. He'd never known any children in his life either really, so it was a completely new world to him.
I was sure he truly loved me, but it took time for him to get used to the idea of a life he hadn't anticipated. Sometimes it was important for him to be able to talk about his doubts and how he was feeling.
He was committed to our relationship and gradually started spending more and more time with all of us and realised it was OK.
By the time he moved in, he was ready for the commitment involved and for many years was the main breadwinner for all of us, as he earns a lot more than me.
He's still the love of my life, and I feel has been brilliant for my family.
I'm not sure if I'd have found it easy if he'd had children too. He had a dog, which took a lot of getting used to for me, not being a dog person.
But we loved each other and gave each other space to figure things out, stuck with it and it worked out in the end. If I ask him if it was all worth it, he says it was and he's happy with me.