Investigate > “How long since you escaped?” > “You’ve been alone?” > “Are you sure?” > “Good plan.”

“I’ve thought about it.” or “Lothering is gone.” However, if “Survival.” was chosen in response to Fenris’s first question, the final rivalry score will only be (+5), which is the lowest it can be. Note: If Hawke is a mage, there is no way to avoid rivalry gain at the end of this quest.

This is just as much for my own reference as for anyone else who might be interested. (I had assumed it would continue to change even if you reached the limit of one or the other.) So I thought I would shorten the Fenris/Approval wiki page options to which ones will gain you friendship with Fenris without sacrificing any pro-mage/anti-templar/anti-chantry leanings you may have (which is how I ended up getting max rivalry with Fenris). I didn’t realize in Dragon Age 2, you can “lock in” the friendship/rivalry once it’s maxed out.