Elven Loves

[Belwen_of_nargothrond]

I've only read The Silmarillion, The Hobbit, and the Lord of the Rings Trilogy. I have yet to read the others. I was curious, I can think of many instances where elf maidens fell in love with mortal men. But is there anything written about elf lords falling in love with mortal women?

[Earniel]

There's one, I believe. The woman was named Andreth, I forgot the Elf's name. It is somewhere in the History of Middle-earth series, but personally I have yet to read it.

[The Telcontarion]

But alas, I have never come across it.

[Lefty Scaevola]

That was Aegnor, brother of Finrod and Galadriel, who was in love with Andreth of the Hose of Beor, in Dorthonion in northern Beleriand. There was no marriage/consumation becasue aegnor held to the Edarin tradition of not starting families during times of great danger/serious war, reinforced by his premonition of his soon coming death in battle.
Most of the information for this comes from the Athrabeth (sp), a discussion between Finrod and Andreth about mortality and the Morgoth caused "fall of mankind", in HoME. You should be able to find a disucssion of that by searching the forums here.
The Elvish 'history' mostly covers only the nobility and royalty and I suspect there were many more Elf human unions among the lower classes that no bard or scribe bothered to preserve for the future.