Always getting war declared!

[Cleaner]

Whatever i do or make, Bayern always declares war on me and i have no chance against them, i load the game again and again and the king of bayern already loves me, but he keeps declaring war on me. And if i give up i loose my whole country! So how can i stop, him killing me the whole time?

[Half-lidded Bruiser]

Stop being weak enough for him to be willing to declare war on you. Stop allowing him to have CBs targeting you. Also, loading the same save probably won't help much. Try a new campaign.

[Chip56]

You are not telling us enough to give you a detailed answer. You neither tell us how far ago your last save is, how much money you have, how your armies look, if you have any children that you can use for an alliance...

So here are some random guesses what you might be able to do if the situation allows it:
1) become a vasal of someone. Either bayern or someone thats stronger than them.
2) Arrange marriages. Call in those allies to the war.
3) Hire mercenaries if you have enough gold
4) Avoid fighting bayern head on and just try to capture some cities and sue for white peace if you can get to +30 war score
5) actually marry someone to bayern to make them allies.
6) murder the king before he can attack you

[Cleaner]

Okey so what i just figered out is that he kept declaring war because i had a different religion, so i simply converted everyone and he loves me now, but still thank you guys a lot for your help, as im relativly new to the game.

[SailaNamai]

Also when fighting a stronger army you should hang back and let attrition work in your favor. If the AI chases your army then take it for a round in your realm and force it through your forts. When the AI starts to siege. Let it. When a garrison is full the siege will take some time and some attackers will die. But more importantly soon enough supplies will also deplete.

Let the AI move on to the next fort and siege back the first one (which you can take faster because the garrison is depleted). Make sure to not get caught while in a siege because you will be treated as the attacker (sometimes, depending on proximity you need to let 2 forts fall before you can siege back without being challenged). When the AI army starts melting because supplies are gone you can go in for the kill. Always attack when an enemy is in a siege. When you have beaten the AI army you can usually white peace out or go for the turnaround if your economy allows for it.