TL;DR: Bioware's representation of gay/bi men in their romances as all being promiscuous is stereotypical and offensive to me and a lot of people who've fought for years just to be regarded as equals. Hopefully Andromeda will take influence from ME3 and have a Bi option and Gay option, one who is not promiscuous with no prior sexual history and the other option who is that so everyone has representation. Until it's confirmed that there is an option for us gay men who isn't promiscuous I won't be funding Bioware by buying this game if they are only interested in portraying us as all as being promiscuous.
That was my impression of Dorian, Sera and Iron Bull in Inquisition as well. I would like to have the chance of having a gay romance, both as a man and woman in video game with someone who's not kinky, gross or vulgar about sex. Just someone normal.
Homosexuals are not eccentric people. There are people out there who dress up to look different. They dye their hair and cover their bodies in tattoos and piercings to scream to the world how unafraid they are of being judged, but they don't represent the gay individual.
If they wish to dress up and challenge society by changing their appearance, being loud and engaging in further behaviour aimed to indulge their incessant need for self-affirmation, it's their choice. But a lot of homosexuals are discreet and dress and act like your average person.