Sodomy is the original way to summon demons, that is why it is a sin, just like boiling a kid in its mother's milk is a sin and cross-dressing (according to the Torah) but if you can be gay without indulging in satanic marriage nor cross-dressing there is no sin upon you.
Marriage is sex, Gay Male Sex is Sodomy hence it is impossible for any cleric in any Torah-based religion to bless a marriage between two men. However, there are cases of two men who love each other closely like brothers (able to sleep in the same bed without indulging in any sexual ativity) being blessed as brothers forever just like a modern day civil union between two straight males. It is called adelphopoiesis in the eastern traditions.
Non-incestuous female homosexual activity is not forbidden (incestuous female homosexuality is prohibited) and there are several cases of girl-friend relationships between women in the Bible, for example Hagar and Sarah, Leah and Zilpah, Rachel and Bilah, the 500 concubines in Solomon's Harem etc.. However, the command for men and women to go forth together (and if possible multiply) indicates that although sexual activity between women is not prohibited, the absolute lesbian rejection of male partner is prohibited unless one adopts a consecrated life of celibacy. Othewise we can see marriage should be one man and up to a maximum of few women, while there is no limit on how many female sexual partners those women may have at the same time (e.g. 500 in Solomon's Harem), though obviously those women must not be already married to any man. It is possible to be the lifelong girlfriend of a woman who is married without ever having sexual relations with your girlfriend's husband, but a strictly monogamous female female lifelong sexual relationship is apparently impossible from the Biblical perspctive.
In the end though, as long as you feel sorry about your inability to meet the targets set in the Bible, you have salvation in Christ. But if you do not feel sorry about your sins (as defned by the Torah) then you have no chance at salvation.