It took you a while to finally say it but you finally said it
Man vs Man The scene, where Bobo went to tell the Youngers family that the money put into the investment of the liquor store and Beneatha's schooling money had been stolen, is an external conflict between Walter and Willy. Walter and Bobo trusted Willy to help with the investment of the money, but in the end, he betrayed their trust and ran with the money.
External Conflict "I'm talking about the fact that when I got to the train station yesterday morning-eight o' clock like we planned ... Man-Willy didn't ever show up ... When a cat take off with your money he don't leave you no maps." (Hansberry 100-101)
Man vs Self Ruth is having an internal conflict with herself. She needs to decide whether or not she will abort the baby. She wants to have the baby, but she also has to think about her family's financial issues and if they are able to afford to take care of another person. She can not simply think of her own happiness.
Internal Conflict "Son-do you know your wife is expecting another baby? ...That's what she wanted to talk to you about ... This ain't for me to be telling-but you ought to know.I think Ruth is thinking 'bout getting rid of that child." (Hansberry 58-59)
Man vs Society Beneatha had a dream of becoming a doctor when she grew up but, society back then had a very stereotypical way of seeing women. There were certain jobs, including doctors, that were seen as "male" jobs. Walter thought this way and told Beneatha that since she a woman, she needs to give up that dream and to get married to a man.
External Conflict "Who the hell told you to be a doctor? If you so crazy 'bout messing 'round with sick people-then go be a nurse like other women-or just get married and be quiet..." (Hansberry 20)