Written and first recorded by Todd Rundgren (US #29 1978).
Other hit version by Robert Palmer (US #52/NETH #32 1979).
From the wiki: “‘Can We Still Be Friends’ was written and originally performed by Todd Rundgren, and released on his 1978 album Hermit of Mink Hollow. The lyrics describe a relationship to which Rundgren and the woman to whom he is singing have given great effort, but simply cannot work. Rundgren explains this, but wishes to part amicably, asking several times if he and his partner can ‘still be friends.’ The song is generally assumed to be about Rundgren’s breakup with long-time companion Bebe Buell in 1977. In 1979, ‘Can We Still Be Friends’ became a hit again when Robert Palmer recorded a version for his album Secrets, from where it became a popular Rock album radio hit.”
Robert Palmer, “Can We Still Be Friends” (1979):