Answer

I think not. There is a Torah-level commandment to eat and sleep in a sukkah. Regarding sleeping, there is some room for leniency, especially when it is uncomfortable or awkward. But regarding eating, you need to overcome the discomfort and ask to eat in their sukkah (after they have finished). You are supposed to spend up to a fifth of your money on this, so overcoming discomfort is an easier demand than that (and in my opinion the law of someone who is distressed does not apply here).
This applies to a regular meal. Casual eating is permitted outside the sukkah. And on the first night one must eat at least an olive-sized amount of bread in the sukkah, preferably an egg-sized amount; that is an obligatory commandment.