Pope Francis talks a lot about this in Amoris Laetitia[1] on the topic of Love in the Family. I've only finished the first two chapters but so far he has talked a lot about the same points you mentioned, and brought a lot of insights. My memory is failing me right now on specifics, but it's a very useful and insightful read for anyone who has a family, even if you're not Catholic.
http://w2.vatican.va/content/francesco/en/apost_exhortations...