Layla has the same problem! i have been with her her whole "life" (all 6 months of it
) and now i have to get ready for school to start up again.. today i left her in her pen for half an hour.. she started out just beside herself.. but by the end of the half hour she was just kinda.. making little noises.. tomorrow i will try to leave her for 40 min.. see how it goes... i have to work up to 2-3 hours.. because that is how long classes are... and the time before my mom can come home to let her out... i liked some of the suggestions you gave.. i hope they work for the both of us!