The researchers studied relationships formed on online dating website over a six-month period.
They found that consummate love - described as a balance of passion, intimacy and commitment - was evident at around 12 months into a relationship.
Varna, historically known as Odessos, grew from a Thracian seaside settlement to a major seaport on the Black Sea.
Varna is an important centre for business, transportation, education, tourism, entertainment, healthcare.
It found that one in five of those who have used dating sites to find their perfect partner have gone on to marry someone they met over the web. , also revealed that more than half of the 1,504 people questioned had been on a date with someone they met in cyberspace.
Sixty-two per cent agreed that it was easier to meet someone on a dating site than in other ways, such as in a pub or club, or through friends.
Companionate love - a relationship with high levels of intimacy and commitment, but lower levels of passion - was the next most frequently experienced form of love, exhibited by 16 per cent of the study group.
Dr Jeff Gavin, who led the team, said: 'To date, there has been no systematic study of love in the context-of relationships formed via online dating sites.
'Martina contacted me shortly after she joined the site.
We chatted online for eight weeks before finally meeting up in Berlin, where Martina was living, in May 2007.‘It felt right between us from the start and in October 2007, I proposed at home in Yorkshire.
The city is referred to as the maritime capital of Bulgaria and headquarters the Bulgarian Navy and merchant marine.
In 2008, Varna was designated seat of the Black Sea Euroregion by the Council of Europe.
From top left: Asparuhov most, Black Sea beach, Euxinograd, Varna Archaeological Museum, Stoyan Bachvarov Dramatic Theatre, Dormition of the Mother of God Cathedral, Drazki torpedo boat, Navy Club, Palace of Culture and Sports, Ancient Roman baths, Varna Ethnographic Museum) is the third largest city in Bulgaria and the largest city and seaside resort on the Bulgarian Black Sea Coast.