adapt to other players gameplay or not?

[Phantom_RAcast]

i had an arguement with this online with someone.

there was an over-leveled racaseal in the room using a rifle (forget which one), we were in hard mode btw, and she frickin picked off all the enemies before i could get to them, because i only had a damm saber type weapon T_T. so i told her, "leave a few for me.", she refused and said to use techs... but my techs range was way too short for a frickin rifle. She never stopped hogging so i started screaming at her...

eventually she said i looked gay and i left ._.

i don't think you should have to adapt if the person with the handgun is not overly-powered, if they have that many problems they should split up so they all can have their fair share of exp. imo.

Was it only the two of you in the game? She could have been helping someone by rushing them to the boss.