Congratulations on the weight loss my man! But really… why do you care what the scale says? You can see the results and so can other people, and you’re getting stronger on top of it. That’s a killer combo. I wouldn’t change what you’re doing as long as you’re progressing like this. 1800 calories is pretty low for a 265lb guy, and since you’re already doing weight training and cardio, I’d say you’re doing just about everything you can. I wouldn’t go much lower (if at all) with your calories, and this:
Tells me that you’ve reached a certain limit. You probably can’t handle more work than you’re currently doing at this amount of calories. The thing to do now is continue working hard, like you’ve been doing, and give it more time. 50lbs in 6 months is pretty insane, so congrats again!