As someone with OCD,
And knowing that it is biochemically
Indistinguishable from romantic love, I agree
With those who claim that "love is an illusion"
And point out to those who disagree
That I have found it many times over and still feel that way.

I don't believe in love,
To believe implies doubt, and a leap of faith,
So no -I do not believe in love.
I also do not believe in tables or bananas,
It is simply enough that they exist.
That does not, however, mean it's not an illusion.
Therefore; [insert your own reality/subjectiveness/quantum stuff here]

Love is beautiful, and also an illusion.
If that takes the beautifulness of it away from you
Then you need to realise that illusions are real too,
Just not always easy to understand.