All it will take is a shift in attitude. You need to find a new way of looking at things. Firstly, if it really makes you uncomfortable the way your boyfriend talks to other women then you need to make him aware of it (without accusing him of anything) so he can be more thoughtful when he does.
Tell him if it makes you feel like he's 'flirting' with them in front of you, as that could be part of the problem (A women often notices if her man is flirting with others even if she's there with him). Once you've done that, then you need to realise how fabulous you are that you have the boyfriend that those other women cannot have! Let them talk to him and envy you and feel empowered that he's your guy and they have no chance with him!
I once dated a Rockstar and you can't emagine the amount of women who approached him. It always made me feel fantastic because like you I knew he wouldn't cheat and I knew his 'fans' were envious of me! There is no need to be gelous, just enjoy being with a popular man!
If you keep in mind that different men have different preferences. Some men like ladies that are not so skinny. Some men like SHORT women.
Some like TALL ones. Therefore...... Just because YOU think other women are prettier or thinner has NO MEANING as it relates to what the males are thinking about them. Men can be somewhat STUPID to the feelings you describe.
Your boyfriend probably has no idea he is hurting you by talking to those girls. You should remain calm and don't say anything untill maybe the next day. Then mention it to him in a calm voice, "Do you remember yesterday when you talked to Jane?... I felt jealous and angry when you did that."
Talk it over with him calmly.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.