And now the response.

I would reject the concept of "pure" and "baser" happiness. I'm not a big believer of other people telling me what's good and bad for me because what's good for me is telling other people to do what I say, and what's bad is when they don't listen.

In this context, I would go with the Utilitarian approach.

What's your take?

I don't want to leave you without a present. In the following article, I considered the consequences of different ethical frameworks in a classic situation:

https://medium.com/the-haven/should-you-wish-your-ex-mother-in-law-a-happy-birthday-31854bff130b