hi Ruby
So far i have no indication that this would happen, but you could fill la ticket for it, and we could follow a few pairs with you while they gain love in the cattery.
There are ofcourse also other things which can affect love gaining, like running out of food or milk/cuddle.
The messages you get in your email because you ran out of food in your cattery are actually no indication of the server, as its fully controlled and timed by an SL prim, which is subject to SL lag, restarts, and adjustments to that prim...
Regards
KittyCatS