Is two months a usual leave length for the fighter pilot on 1943/44?
http://www.schifferbooks.com/the-war...1945-2169.html
pp89 to 92 :
On January 25, 1944 I scored my 87th and 88th kills in one sortie. That was the end of operational flying for me until I went on leave on February 2......
On April 1, 1944 I took off on my first sortie after returning from leave.