Alpha rut storylines almost always kick off with a physiological or magical compulsion hitting the alpha. It's less a choice and more a primal, biological imperative that shuts down their higher reasoning. The classic trigger is a potent, unexpected scent from the fated mate that acts like a switch. Sometimes it's tied to a lunar cycle or a specific threat to the pack that triggers a protective, possessive frenzy.
Resolutions tend to follow two paths, honestly. The healthier one involves the omega or mate setting a firm boundary, forcing the alpha to confront their loss of control and actually communicate. They might have to undertake some ritual or mate-bonding ceremony to properly channel the rut energy. The other, darker resolution leans into the dub-con territory where the omega 'submits' to soothe the alpha, which... I have mixed feelings about, but it's a staple in darker paranormal romance.
I prefer stories where the resolution isn't just about sex, but about the alpha's vulnerability. When the rut breaks, they're often left ashamed or exposed, and the real relationship building starts there. That moment of post-rut clarity where they have to apologize for acting like a feral beast is where the good character development hides.