Well, you do not look like you weigh 250 lbs in the new pics you posted. The weight you said--220 something--sounds more about right to me, based on the photo.
Do this...go to Kmart, go to Walmart - wherever - and go to the aisle with the scales, and get on a few of those and see what they say. I have done this before more than once. Don't worry if you have to open the boxes to take them out. As a customer, it is your right to test scales before you decide to purchase them! They should have them out on display for you ideally, though most likely they will not, so that is their problem--their mistake! Most likely nobody would even say anything. If you discover that your home scale is wrong, buy a new one--that simple. If it is correct, then by all means be happy the doctor's office made a mistake.
Then again, I just saw that your April 18 post says you are 250 lbs, so it would seem a bit hard to lose 30 lbs since then, but that may have been a typo.
Whether you weight 250 or 220...it's no big deal...you have lost a lot of weight already and will keep losing and will eventually reach your goal. You have already accomplished quite a lot. I was up to 330+ last May 04, and i have lost over 100 lbs (well it is now about 230 for me...gained a little bit due to having stopped exercising, but i am back with my exercise routine now -- walked 5 hrs today and 2.5 yesterday - plan to do a lot more this weekend). So i know you have worked hard to lose that weight, so if you find out your scale was wrong, don't let it bother you too much! It won't mean anything in the long run.
About the girl...try to get back together with her. Let her decide how she feels about the breasts. Unless she has made some comments about them, my guess is she will not care. IF she is a girl you are really close to, I am guessing there is a good chacne she probably already noticed--women are very perceptive. Anyway, the part of your anatomy she is most interested in is NOT your chest...it is down below further...so unless you are lacking in that area, she probably won't even care that much. And if you are lacking in that area, it might not matter to her. Besides, girls are usually more interested in the person...than in a person's body--girls are not sexual pigs like we men are. And I am sure that once she knows you have lost so much weight and plan to eventually get the surgery...there's a good chance she'd just overlook it, knowing it would go away...or she might not just even care. So give her another shot and let her decide if she likes the boobs. Maybe tell her about hte boobs and tell her you want to keep the shirt on if that makes you feel better--that way she coudl not get grossed out--but do let her make the decission. She might surprise you and make your dreams come true.
If she says no, oh well...it wouldn't have lasted anyway...only a frivolous and shallow girl would care about something like that--and you probably should avoid such people in romance. But there will be many others out there in your future when you've finished your weight loss/boob loss plans, so don't let it bother you too much. Women are a dime a dozen.