I understand your challenges with comprehending this, and that is how it should be.. for now.
Could you not care that you do care.... but there is a challenge here. Let's substitute two words, attachments and aversions, for the word care. What are they? Just thoughts. Thoughts that something is better than something else... but they go a little deeper. Attachments and aversions have a stickiness to them.
Let's say you decide to go to a certain restaurant for dinner, you make plans, find a friend to go with, get all dressed up... but when you arrive you find your favorite restaurant is closed for Estonian New Year. You didn't even know there was such a country... but you have enjoyed their food immensely. Now, there is nothing wrong with making plans, setting dates, blah, blah, but how are you going to react to this little glitch in the program? That is the indicator of how much attachment you had to your mental pictures and thoughts about dinner. Alright... I concede that's a rather silly example, so permit me to get more serious.
You meet someone you really like and after considerable investment in courting and false personality and relationship development you get married. You have, quite understandably, built up many stories and created numerous attachments/aversions and hold them as important to you. He/she should and will be this way and that way, will not do this and won't do that, blah, blah, blah... They will permeate your mind both consciously and subconsciously.
You have a great honeymoon, the families meet and get together surprisingly well... and they two years later, the object of your dreams tells you one of the following:
1.) I don't love you anymore, or
2.) I love your best friend, or
3.) I have been exploring myself and discovered I am gay, or
4.) Your feet stink and I am leaving you.
Will this really happen with that person you loved so much? Well.... I don't like gambling, I think it's a fools game, but I would be willing to put some money on this, or something very similar, happening eventually. $10 on the table (hardly a high roller, but I know my limitations).
Every human I have ever seen go through this sort of experience suffers... but not from what they think they are suffering from. The fact that someone left you will bother you to the degree that you cling to your attachments and aversions. I've had people say words to the effect that, ''I can never forgive so-and-so for what he/she did to me.''. To which I respond, ''Yeh, sounds nasty, how long ago was it?''. I get back something like, ''twenty-three years ago, two months, three days, and about 45 minutes.... and waiter, give me another drink.'' To which I respond something like, ''Yeh, I'd carry that one to the grave it I were you... I'd cling to it like a dying man to a life jacket. That worthless so-and-so, how could they.... blah, blah, blah.'''. I would keep this barrage up for as long as it took to have the person say something like..''Well, hold on a minute, it wasn't quite that bad, we have some good times.''. Then I would something, ''Really?'' and they will tell me the good side of their story.
It might sound a little fictitious but I have done similar things a good many times over the past twenty years.
Well, alcohol is indeed a solvent, but it won't dissolve attachments and aversions. It will only add another attachment, to the bottle.
What is one to do? There are methods for effectively releasing attachments, but is takes some training and guidance. What I suggest you start with is simple.. start listing your attachments and aversions, become very aware of them. Observe them in self and others. Make a study of them. I can tell you that you already have plenty and there is not much point in acquiring more. Temporary attachment to your study of attachments can result is considerable pleasant detachment.
Never, ever get attached to any teaching, mine or anyone else's. They are tools in a tool kit. Use them, abuse them, do whatever you want, but eventually, place them back in your tool kit and shove it under your bed. Of course, I might come back and haunt you now and then.
Love ya, Jed.