She did not LJBF you because you ate too much rice during dinner. Things weren't clicking anyways and this was merely an excuse. You said it yourself, you were a boring conversationalist. If a woman is really vibing you, she's not going to care about little things like this until months into the relationship. Work on your conversational skills with women, it is best to let them do all the talking and always steer the conversation towards their feelings/emotions.
But hey, she doesn't seem like the pick of the litter anyways. I abhor people who kiss and tell about their relationships over public arenas like internet blogs. Next her and move on.