There is no single "right" way through the game, which is why Larian recommend you just go with what you first choose. You cannot see all of the content in one playthrough because various choices and actions ( or inactions ) will advance some paths while locking others. Not to mention that various bugs can force you to make choices you might not otherwise have made ( in my case, looking at Halsin here, sulking in Minthara's room until near the end of act 2, and never actually returning to the grove ).
I've made a couple of choices that led to outcomes I didn't want, but have continued with the choice anyway. I've also deliberately made choices that I indend to roll back just to see the cutscene ( particularly those that will lead to game over/party wipe ).
As for the camp, that can be divided into 2 parts.
Most (not all) of the banter is flavour that can be obtained day or night (or in-world for your current party) and is of limited importance except for romance approval. For romances to progress you do have to taIk, and probably have to do at least a few things that the NPC likes. I don't know whether character build choices make a difference, but my character (Good Cleric 1/Bard 11 with very high CHA and persuasion) that panders to every NPCs apparent preferences in dialog, has had almost every NPC falling over themselves to share private time, from about the second long rest onwards.
The second type of camp activity is the "event" that happens when you sleep, which can include actual romance scenes, but also additional scenes that trigger due to in-game progress. These do sometimes trigger in a janky manner, and I suspect that if you have both a romance scene and a in-game progress scene ready to trigger, you might lose the romance.
But, as Tuco points out, resting at all possible times has its own risks with certain in-game progress. Personally, I have settled into resting when I am low on resources.
