For me, a psychological state is registered definitively when the term 'happy' is used to describe it, while the experience described by 'like' can always be debated. For example, we spent two consecutive Christmas at the Yosemite NP. We liked both. But the second visit was a 'happy' experience. The whole park was under more than a foot of snow and I still remember the taste of the fillet mignon dinner on the 25th. I didn't feel like coming back to town. Similarly, the one night planned stay at the North Rim of the Grand Canyon that we extended to two nights. In both instances, we stayed in cottages in fairly wooded areas. You get terribly hungry but who wants to eat; the fresh breeze and the cool temperature and those water droplets constantly condensing and making that sound as they fall on the dry leaves below will drive anyone to sleep in a city but who wants to sleep and waste off the experience there, then.
For me to 'like' represents description of experiences over fractions of time while, the cumulative positive effect is 'happiness'. I may like something and try to go and do the next step and end up disliking it. The net information then is inconclusive and I need to explore some more if circumstances permit.
But irrespective of what the right choice of word is to describe the psychological state, what I'm really interested in, is exploring if there's any merit in the hypothesis that we are not really very adapted to this time coordinate. It gets reflected in our social behavior too.
Perhaps the reverse experience is more intuitive, that every event has it's own time coordinate. All we do is generate a critical volume of information so that the event can take place. An example is Hillary Clinton's not becoming President; didn't she have everything, perfect, to become the President? It just wasn't the time; it was Obama's. And by this I mean the collective behavior of the World required Obama. I have examples even in my technical field that seem to conform to this idea. In India I notice these retrograde actions, consistently; almost everything seems like a cure and never prevention. A people that can't feel the pulse of time and therefore always acts in retrograde is then the characteristic of a developing Nation.