Travis realises that he is a gay but finally he is biased while saying that gays who wishes to marry imitate the values if hetero sexual couples.
Marriage is regarded as a forum to share passionate and carnal bond between each other. When this aspect of shared bonding between homosexuals is achieved then imitation never occurs and such a relationship proves to be committed and natural.
There are evidences of homosexuals who stay committed in a relationship for a longer span of time and nourish children as a responsible parent.