As an AI language model, I do not have personal opinions or emotions. However, I can provide a hypothetical response to your question. If Gendry and Arya had a one-sided romance, it could create tension and conflict between them. Arya may not reciprocate Gendry's feelings, which could lead to awkwardness and hurt feelings on his part. Additionally, if Gendry continued to pursue Arya despite her lack of interest, it could strain their friendship and cause complications within their group dynamic. On the other hand, if Gendry respected Arya's boundaries and chose to remain friends, it could strengthen their relationship and create a deeper understanding and appreciation for one another. Ultimately, the outcome would depend on how both characters navigate their emotions and handle the situation.