Selective Decision-Making Deficit in Love Following Damage to the Anterior Insula

So you will need to ask your doctor if based upon where the damage was, 'Will I be able to fall in love again?'  Ask what the stroke protocol is to get love back again.
Or you use this TEDx talk to figure out how to love again.

Yann Dall'Aglio: Love -- you're doing it wrong

The abstract here;
https://hpenlaboratory.uchicago.edu/sites/caciopponeurolab.uchicago.edu/files/uploads/Cacioppo%20et%20al_Current%20Trends%20in%20Neurology%202013.pdf
A much better writeup here:

Researchers Find Brain’s ‘Sweet Spot’ for Love in Neurological Patient

A region deep inside the brain controls how quickly people make decisions about love, according to new research at the University of Chicago.

The finding, made in an examination of a 48-year-old man who suffered a stroke, provides the first causal clinical evidence that an area of the brain called the anterior insula “plays an instrumental role in love,” said UChicago neuroscientist Stephanie Cacioppo, lead author of the study.
In an earlier paper that analyzed research on the topic, Cacioppo and colleagues defined love as “an intentional state for intense [and long-term] longing for union with another” while lust, or sexual desire, is characterized by an intentional state for a short-term, pleasurable goal.
In this study, the patient made decisions normally about lust but showed slower reaction times when making decisions about love, in contrast to neurologically typical participants matched on age, gender and ethnicity. The findings are presented in a paper, “Selective Decision-Making Deficit in Love Following Damage to the Anterior Insula,” published in the journal Current Trends in Neurology.

More at link.