Many homosexuals say that they agree with their partners to share the household but that each will have the freedom to meet with others as much as they want.
To give voice to those who don't post here or are afraid to comment, many homosexuals agree with their partners to share a household and to remain sexually faithful to each other, even when bedroom relations die. This is the case among all of the gay and lesbian couples I know who are actively involved in a church and some who are not.
Many heterosexual partners cheat on each other by having sex outside the marriage. But I wouldn't want to paint all heterosexual couples with the same brush.
That may be true. But your drawing a parallel between homosexual and heterosexual couples is a dangerous deception. There is no moral equivalency between monogamous homosexual and heterosexual couples. There are no examples from the Bible or the Fathers of homosexual couples, whether sexually active or not, being blessed by God or the Church.
There are plenty of heterosexual couples, including a prophet with a prostitute, that are blessed by God in Scripture.
Homosexuality is only seen in a negative light in Orthodox Christianity. It is mentioned as the path to darkness and death by many Fathers.
To draw the moral equivalency of these two is self deception, no matter how many Finnish Orthodox priests apparently overlook or even exalt the sin of homosexuality. Orthodoxy is not Anglicanism, which justifies changing Apostolic doctrine under the aegis of "reason".
As for unrepentant homosexuals being fully involved in the Church, that may be big in Finland, but I hope such heresy is not widespread in other jurisdictions.