OK, story time! (A short one.)
I've always hated coffee. Then, while I was stationed at Fort Riley (Kansas), I got into a job that required me to go out to different unit headquarters and NOT annoy people. In order to do that, this being the Army and all, I had to learn to drink coffee socially. It was mandatory, and declining a cup of coffee was pretty much unthinkable. I got to where I could drink coffee with and without sugar and/or cream or milk. All the way from reasonably well made to coffee made by filling a T-shirt with grounds, sewing it shut and dropping it into water boiling in a used oil drum. This was after it had been boiling for three days, with water added occasionally to keep the coffee from reaching explosive concentrations. (Actually, that was my favorite because it was pretty much pure caffeine without too much of the nasty aftertaste.)
Nope, I didn't learn to love coffee. I still can't stand it, but I can still drink it if the situation demands. I'm a tea drinker. If you've never had SAS-style tea in a tin cup, in the field, you've never had tea. It's a delicious, refreshing beverage and an effective rust remover at the same time. Drink quickly before the cup dissolves.