They tried to spoil Lady Melissa as much as they could, while making sure that they hadn't spoiled her too much, not wanting their daughter to grow up as some bratty child.
They had seen how nobles treated their children, and when neglected and money was just thrown to their child, in hopes of solving the problem.
It would end up to a child, growing spoiled, and needing all of his/her wishes to be met with, or else they would just whine and whine.
Lady Melissa's parents didn't want their daughter ever ending up like that, so they decided that even if they spoiled her, they were going to set a limit to it.
And that, no matter how busy they were, they would at least set some time aside to play with their daughter, in hopes that in the future their daughter wouldn't end up being distant from them and that all three of them would have a close relationship with each other.