Based on the context and the answer, generate a question. 

Context: So anyway , the trip . I am headed for corvallis tomorrow evening to spend another day with the Professor . Originally , I had planned to be in Seattle on saturday , but I am having a hard time leaving the Professor ... and we agreed to spend satuday together doing something pretty cool as the last hurrah before I leave . Goal is to get to seattle early afternoon sunday , so sister and I can go over whatever else we need , and trying to check out packs and packing , etc .

Answer:

Because I was having such a great time with the professor .



Why would I be having hard time leaving the professor ?