The basic distinction made by [Greek] Fathers is between the demonic provocation and man’s assent: the first lies outside man’s control, while for the second he is morally responsible. (Philokalia, Glossary)
Philokalia also describes different stages before temptation becomes sin:
provocation --> momentary disturbance --> communion --> assent --> ...
Communion (όμιλία - homilia); coupling (συνδυασμός - syndyasmos). Without as yet entirely assenting to the demonic provocation, a man may begin to ‘entertain’ it, to converse or parley with it, turning it over in his mind pleasurably, yet still hesitating whether or not to act upon it. At this stage, which is indicated by the terms ‘communion’ or ‘coupling’, the provocation is no longer ‘image-free’ but has become a logismos or thought (q.v.); and a person is morally responsible for having allowed this to happen. (Philokalia, Glossary)