Twins

So, I was told during my 5 week u/s that I was expecting twins. Baby b was developing a little behind "normal" as they call it but they wanted to monitor this. I went back every 10 days for 2 different appoint., all appoint, went well baby b was developing just find. Went to the 3rd appoint at 11 weeks, and the nurse said nope you lost baby b. There are clearly still 2 sacs, and in all the u/s photos she gave me you can see the sacs and the yolk for each and each u/s photo is done at such an angle that you do not have all of the 2nd sac in the photo. I never experienced any symptoms of miscarriage to lead me to believe that I did in fact experience VTS. My s/o tells me I shouldn't get my hopes up and believe what the nurse tells me, but I feel that she really did not even bother to determine what was there. I refuse to show others my u/s photos because the few people who has seen them asked why I have not asked for another u/s because they all feel if I did experience VTS the other sac would have been absorbed and undetectable in the u/s.....Just lost/confused/possibly in denial. I know what it is like to lose a child, I have experienced it before, but I do not feel that this is the case this time. They are now treating me as though it is a singleton pregnancy and I must wait 8 weeks before going back for a u/s. Has anyone else ever experienced this before?? What are some thoughts?