I've got to say bouncyball I think you're being a bit harsh and unkind, wishing a 'difficult' baby on someone.
We have probably one of the easiest babies ever, he is a wonder, very contented, feeds and sleeps well and has done since about 6-8 weeks old, (he's now 11 months) after the (I understand) traditional first few weeks of refusing sleep, crying at all hours, and burping if you so much as looked at him.
We are fully aware that this can all change in a flash, that we are really really lucky with him, and that it's not a result of our excellent parenting but just good fortune. AND YET everyone seems to delight in saying "oooh, you'll get a horror next time!" or "you don't know how lucky you are." (said with a tone that implies "and you don't deserve such luck either") or some other such helpful phrase.
Why is it that even some friends and family seem to be wishing us to be struggling? It doesn't feel very friendly or loving to me and is starting to really irritate me.
Some of my friends from NCT have had what other people might describe as 'difficult' babies, and I prefer to call 'spirited' or 'assertive'. I would not wish that experience on anyone, and all I've done is hear about it not live through it. They've all been nothing but happy for me that our DS has been so easy for us, although I tend not to talk about his habits unless asked directly because I don't want to be insensitive.
So i think YABVU.
If she has children she'll learn about the night feeds, the night waking, the early starts, the astonishing amounts of poo and puke, the endless laundry, the bugs you pick up from them, and the immense heartstopping joys too - whether baby is easy or difficult. If she doesn't, then she won't - simple.
You're responsibble for your feelings, not her. No-one can belittle you if you don't let them and if you're confident in your choices. You can choose to respond to her naivety with a wry smile and a wish for the best or with a mean spirit and a hard heart- it's up to you.