Previous research in the area of SLA has examined a few variables related to various linguistic emotions and the relationships between these emotions. This paper initially looked at the three scales that have been used to assess the Online version of the CFLES, FLCAS, and FLLBS. Using a sample of 226 undergraduates with non-English majors from two regular institutions in Shandong province, this article used a mixed methodology. The examination of the association between the emotions and performance in the first stage of the research supported the structures of the 8-item FLCAS, 11-item and 4-factor CFLES, and 8-item FLLBS. This fit was optimal between the descriptive statistics of four emotions and their English performance. In the second stage of the study, the qualitative analyses of interviews with 10 of the 226 participants on an open-ended question on the four emotions revealed a variety of different sources of sentiments and emotions from these L2 learners who took the online English courses. The results of this study, which are impacted by the ongoing effects of COVID-19, add to ongoing research on the dependabilities of the CFLES, FLLBS, and FLCAS in these specific circumstances. This report also presented ideas for future research on guilt associated with learning a second language in this situation, which has significant pedagogical ramifications for L2 practitioners.