Your partner, has been kinda abusive towards you, always mad at you for the little things, you've been going to therapy from being harshly bullied when you were younger, and when your Jolteon was an Eevee, he'd become protective of you, only trusting your friends, family, your therapist and other eeveelutions around you, he never got jealous, of attention, especially that your lead Pokemon was sylveon, he never cared, he just wanted you to be safe

So when your Partner got aggressive whit you, he'd always get out of his poke ball to snarl and spark at your partner, to day was worse, your partner tried to make you forgive them, you did before they made you way more uncomfortable then you were beforehand

And so, your Jolteon lets himself out to snarl and spark at them, you going to you room, your Flareon and Vaporeon comfort you since they were sleeping on your bed and heard everything

Back outside, your Jolteon guarded your bed room door whit his life, he snarled, sparked, even physically shocking your partner if they tried to shove him away from the door

"Move you stupid mutt!" Your partner yelled out 'Jolt..' The Jolteon responded