BF returned on Sat' from working on big construction proj' in Middle East. Whilst emptying his sports bag this morning. I was surprised that all clothes within were freshly washed, not folded, but clean. Also within were a pair of flimsy, pink knickers, clean, and way to small to be mine or for me. He had to go away again this morning for a meeting and is back tomorrow eve'. Haven't confronted him yet. He does have a lot of laddish mates out there. I don't know I'm clutching at straws here.. help! advice please!!!