Correct. Women living together are friends. Men living together are friends. Marriage is between one man and one woman regardless of what a transient popular culture may claim!
You can hold that personal belief, but now the United States government recognizes marriage benefits for military and federal employees, and immigrants, and gay marriage is legal in America, legally "marriage".
I don't think that many of us cared that 40 or 50 years ago a couple of homosexuals kept claiming they were married at the local gay bar, because we knew that it wasn't legally "marriage".