That pic in that last is not a S. fryeri (electric blue fryeri) imo, or at least not a pure one. Sounds obvious, but electric blue fryeri are more of an 'electric' blue, brighter, more metallic looking, and generally a sleeker profile (
link) and females, juveniles, and males in some moods have blotches like
this. As mentioned, fryeri were commonly called ahli in the past until they were classified as a different fish but, as often happens, not all of the hobby has caught up and some still use the older name. Also, as mentioned by james99, true ahli aren't really seen in the hobby, for one thing they're relatively drab compared to fryeri and other popular haps.
Sometimes they're ok, but not at all unusual for fryeri to be aggressive ime, especially with peacocks and similar sized haps, but then yours doesn't look like a fryeri to me, at least not purely bred. If that's its peak color my honest guess would be a hybrid, but it could also be something else I'm less familiar with.