[gruseom]

The tense doesn't work in both the past and present. That's why you had to switch to the past tense to make your second point. Translating it back to the present gives "Facebook says that you like something that you do not", which is what the OP is complaining about.

[bparsons]

"Gruseom likes McDonalds Hamburgers." It works if you just did it, or did it 3 years ago.

[gruseom]

This is so obviously not the case that I wonder why you would say it. What a person likes changes over time.