@Tulipstulips
at my mum’s funeral someone said to me, “It was a lovely service. Oh your mum would have loved it”. I was all out of tact and said ”I doubt she would have enjoyed her own funeral”. This poor woman just about died. Still feel a bit bad about that, I bet she thinks about it still and cringes.
I know this is your story and this is how you felt but here in Ireland, something like that would be so common to say, and meant, and taken, as words of comfort.
When my dad died, we all said it to each other (it was a huge funeral, remember it's Ireland so people just come, no invites, and he'd have been thrilled, seeing everyone there!) and it helped. I'd often say it to the bereaved, meaning exactly as this lady did, that it was a lovely ceremony that honoured the person who had died.
People said lots of tactless things to me at my dad's funeral - I think people do. (One that stands out was 'you think it's bad losing one parent? Wait till they both die'. Said with my poor mum (in fine health, thankfully!) standing right next to me). But I knew that they meant well & didn't say anything, just thanked them. I know you were grieving but it was mean to say that to the person who was trying to sympathise with you.
Sorry to derail OP I know you didn't mean it and are sorry - other posters are right that you just don't talk about someone possibly dying unless it's been said to you. But you get that & I think flowers are very kind of you.