Dude, it's just a phase. It'll pass soon enough. Meanwhile maybe get a hobby of your own or dive deeper into the one you already have. It'll keep your mind off the 'competition'.

First of all, Alfredo is NOT 'just a rodent'. Guinea pigs are incredible creatures that can bring immense happiness. If your GF is happy with Alfredo around, you should try to be too! Share the joy, don't fight it.

Well, it's important to communicate with your partner about how her behavior makes you feel. It's obviously making you uncomfortable and maybe she isn't aware of it. Talk to her but remember, no need to blame Alfredo, he's innocent.

Alfredo is THE man, are you kidding? You've got some serious competition there, buddy!

It's quite common for pets, especially the new ones, to get a lot of attention. It doesn't mean your girlfriend loves Alfredo more than you. Invest time in learning about guinea pigs, it can be a fun experience for you. Both you and Alfredo are part of her life now. The love doesn't lessen, it just gets shared.

No offense dude, but were you even really that cute if you're getting shown up by a guinea pig?

LOL, Alfredo is stealing the show! Maybe try to hog the attention back by doing something cute or surprising for your GF?

Hey, don't be jealous of Alfredo! He's a part of the family now. Try spending more time with him and grooming him. You two could really bond. Plus, your GF will love you even more if she sees that you are giving Alfredo the attention he deserves!