I'm sorry that Deegan feels sad now. Maybe it's something else. I would say to just make sure you are giving him plenty of attention too. I'm sure you are, but you're probably making a big effort to help Trooper feel comfortable in his new home, so maybe Deegan is feeling left out. Give him some special "alone time with Mommy" if you can. When Deegan feels better, I bet DH will too.
Here's how I resize my pictures. I don't know if you have the same program on your computer, but it's worth a shot. Oh, and I always make a copy of the picture, and work with the copy so I don't ruin the original.
Open My Pictures
Find the picture you want to resize
Right click on it
Choose "Open with --> Microsoft Office Picture Manager"
At the top, click on "Edit Pictures"
A menu should open on the right side.
Look for "Change picture size"
From there, click on "Compress Pictures"
As you click on the different options, at the bottom, it will show you the original size and the compressed size. Try different ones until you get the size you need. (Remember to check the max. size on YT first!)
Good luck! I hope this works...