Ok, you got the sugarcoated responses, but I am going to keep it real with you, because that is what drives results. Being critical is important.
Let me ask you this. What does your PL coach say? Where does he want your weight/want you competing(275, 242, etc)? Does he want you gaining weight?
Bottom line is, if you are not gaining weight, and you need/want to be, you/we need to fix that. Where can you make changes(dietary) to get the scale moving again.
It is good your lifts are progressing, but could they be progressing faster if you were gaining weight?
It is hard to be critical of ones self, and it is hard to be critical/objective to a friend, but it is important. I train a few friends and at times it is hard to give them a dose of reality(in terms of body composition, lifts,etc), but as a friend and their coach I NEED TO.
Bottom line is don't beat yourself up over it, but if you want/need to be gaining weight then address the problem. Don't let it go 6-7-8weeks without change. You are wasting valuable time.
I typically try not to focus on the scale, but with something like this, where competition is involved(weight classes, etc), sometimes the scale holds a bit more importance, than an avg joe just lifting.