You could just began to ignore him. Hopefully you are not living together because if you are you will need to move out. You might need to get a restraining order if it become hostile. But ignoring his calls, and moving on will signal an end to the relationship.
end the relationship
I will end the relationship
You do not do this. It is their relationship and you ethically have to go along with it. Either it will end or not, but you should not act on your opinion of the relationship.
you talk to him if he is your best bud he might understand ,but if not talk to her
Put your stuff in his closet.
not always. for most people, a boyfriend can be a short term relationship or you can end up marrying him
yes you can like her but its not guranteed that you will end up in a boyfriend girlfriend relationship.
if are ever on a relationship where your boyfriend hurts you in any way or scares you you need to end it right away. and stay away from him
no
Your boyfriend has a tongue in his head and he should be the one to tell your best friend to back off and you shouldn't have to say anything. Best friends do not try to kiss their other best friend's boyfriends. Tell her to back off or you will end your relationship with her. The word 'annoy' means to irk someone (they get angry or frustrated) and you should be angry more than annoyed. What your best friend is doing is out of line and your boyfriend needs a spine to learn to say the word 'back off' to her.
If your boyfriend is that jealous, he is not going to stop. You need to make a decision now whether the relationship is worth putting up with that - my advice is to end the relationship and find a boy who will trust you and respect you.
See a Domestic Violence Crisis Center near you. Make a plan to get out.