Based on the context and the answer, generate a question. 

Context: And it upsets mum which only upsets me more . Then everytime I see Lily , while I adore seeing her and getting snuggles , it makes me sad . It makes me sad cause it makes it hit home that the things I wanted for my life , I have not got . By now , I had wanted to be married with at least one child , maybe more .

Answer:

Lily is a reminder of her failure to have a stable relationship and children



What is the likely reason that Lily upsets this person ?