To base our happiness on events / things / relationships is like lifting up a plastic sheet (that has very small holes in it) above our head during a torrential tropical downpour and being happy about finding the water that comes down drop by drop through the holes in the plastic sheet. All suffering is our reaction to our failure to fetch those drops trickling through those holes in the plastic sheet.
Awakening is realizing this silliness and catching ourselves repeatedly trying to do that. Enlightenment is the culmination of all this when we finally decide to let go of the plastic sheet above our head. Enlightenment could be an act of divine grace, but awakening is certainly not!