Police took Orling Lauri Tapani into custody after fire fighters put out the fire inside his room on the 13th floor of the Centre Condominium in South Pattaya in Chon Buri Mueang district.
Fire fighters rushed to the scene at 1 am after smoke from the room sent other tenants scrambling out of the condominium.
His 24-year-old boyfriend, Patcharakorn Santiyanon told police that he ahd quarrel with the Finnish man who broke a lot of belongings in the room.
Following the quarrel, Patcharakorn said he left the room, further infuriating his boyfriend who then burned his clothes in the toilet room.