Either I'm not understanding you, or this is severely incorrect.
im saying that if u re-dose with more mg's of mdma than at the starting dose that it will make the roll more speedy than lovey dovey cuz the love feeling comes from the release of serotonin not dopamine
when yer brain has no more serotonin and is still being told to shoot off serotonin it will release small amounts of dopamine instead
meth shoots off dopamine and thats why i say the high will be more speedy than lovey dovey