When Ronan decided to reveal the nature of his curse to Vivian, the Lycan within him was swift to switch controls of their shared mind.
There were things Ronan didn't know about his curse.
Things he shouldn't have known.
Thus, the Lycan took it upon himself to relate the finer details of the curse to their omega mate.
After all, she was the fated mate and deserved to be informed of the entirety of the truth.
Hence, the beast explained that a Lycan's curse could be described as a ticking time bomb, one that could only be halted by a Lycan's fated mate by anchoring the beast to their human side.
Since the dawn of their existence, the beastly race has been challenged with finding a balance between sanity and transforming into complete killing machines.
There was a very fine line, and more often than not, sanity was the less popular side to be embraced.