In May 2012 a gay-friendly bar in downtown Yerevan was attacked and a diversity march in central Yerevan was disrupted by nationalist groups. See Local Laws and Customs.
Under the Local Laws and Customs, British Foreign Office continues:
Homosexuality was decriminalised in 2003 but is still viewed with disapproval by many Armenians. Local LGBT groups occasionally suffer from verbal and physical harassment. Although same sex couples are often seen holding hands and kissing in public, this is common in Armenian culture, and is not necessarily an indicator of sexual orientation. You should be discreet.