同居和事實婚姻

community state不是指同居＝婚姻。你自己看我給你的法律條文。

Sec. 2.401. PROOF OF INFORMAL MARRIAGE. (a) In a judicial, administrative, or other proceeding, the marriage of a man and woman may be proved by evidence that:
(1) a declaration of their marriage has been signed as provided by this subchapter; or
(2) the man and woman agreed to be married and after the agreement they lived together in this state as hu*****and and wife and there represented to others that they were married.

你朋友能證明他和她以前有意向結婚嗎？證據在哪裏？他們和親戚朋友都以自己是夫妻介紹嗎？不要想當然。