I think 2000 isn't possible bro, you probably lied to her about how much you eat during the days / burn with exercise.
It's easy when gaining weight to eat alot and round of the numbers to a higher level, trust me been there done that, i told myself i was eating way much than i was, when i took weight gain seriously and realized how much i actually ate, i realized how dumb i was before how i counted.
I know it's a struggle gaining weight but bro, 2000 a night shouldn't be possible, we just have a VERY fast metabolism. Ur weight is totally fine, but if u want some help and tips you can DM me if you want some tips for gaining weight.
If you sleep 10 hours u burn around 500 calories ( average number ), i doubt you sleep 10 hours and still burn around 4-6x the "normal" amount