No, it is not abuse, it is just being a rude and ugly person (he is). I would not base my judgment of a person just on their physical looks; they had no control over that, that was their parents doing :-) If you know your food to be tasty and pleasing to you, then someone else's comment about a picture of it, whether positive or negative, is not very useful to you? If you are trying to get him to say nice things, boost your self-esteem; he can't do that and might resent being led ("Doesn't that look tasty" is not the same as "How does that look?") but only a thoughtless person would not answer either one positively and compliment the other person!

But why are you not dating men your own age, in your own location, instead of playing with fire/older men online?