RVM gives a nice description https://rvm.io/support/faq/#shell_login
you should use .bash_profile - unless you have a good reason against it, but I don't know much.
Rvm puts the source line in one of your RC files, in your case it was .profile, you have to delete this line, create .bash_profile and update rvm:
sed -i '/source.*rvm/ d' ~/.profile touch ~/.bash_profile rvm get head --auto-dotfiles
mpapis
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