Aw Alyssa, I don't think you should feel guilty at all. Tears are not the only form of grief, they are just the most immediate. Sassy wouldn't want you to cry over her forever. You will always miss her, but you are moving on from the sadness and you've accepted that she's not gonna be around any more. It's not a bad thing at all. You're being strong and I'm really proud of you for it.

((hugs))