I accepted an offer for a 16-month internship with company A last May. I am not treated as an intern and the work assigned to me are similar to the new grads we just hired. The work is stable and it seems like they "will offer [me] a part-time position when [I] go back to school to finish my degree."
Suppose that I was given an offer by a non-competing company B, is it professionally acceptable for me to terminate my employment with company A early?
Could the early termination of my internship with company A reflect negatively on me later on in my career? How early is too early? Considering that the original length of my internship would appear on my resume, I am skeptical.
EDIT: Considering that the original length of my internship would not appear on my resume, I am skeptical.