Here's an overview with all the things you can do to gain or lose favor with the Dalish: http://dragonage.wikia.com/wiki/By_the_Grace_of_the_Dalish
I don't understand the second question. Is this still about Loranil or the game in general? Have you completed the main storyline?
Where are you at in the story?? What was the last main mission you have completed??
I can't tell from the map and logs where you have gotten too...
Why can't you just tell me where you are in main quest...what was the last thing you have done?? Other than that, maybe completed quests, but the map screen doesn't let me know where you are, and thus I can't even begin to tell you where you may need to go. Got Skyhold, been to hissing wastes, fought through that, ahhhh, defeated the big bad......I have no clue where you are in the game, that is why I am asking.
http://dragonage.wikia.com/wiki/Storyline_for_Dragon_Age:_Inquisition
Wiki then is the best thing I can recommend to you then. Above is the link to the main quest line on the wiki for DAI. Spoilers of course but since I don't know where you are, and neither it seems do you, then you will have to read the quest line until you get a better understanding of what you need to do....
Other option is to explore everything, do everything and eventually you should do what you need too.....this to me would be the long but fun completionist way...
