Following steps to find out the love query
1) Open the form
2) Click on field where having the love
3) Find the lov list
4) Keep this form and lov open state
5) Run below query
SELECT (SELECT to_char(sql_fulltext)
FROM v$sqlarea
WHERE sql_id = ses.prev_sql_id)
FROM v$session ses, v$sqlarea sq
WHERE ses.module LIKE '%&form_name%'
FROM v$session ses, v$sqlarea sq
WHERE ses.module LIKE '%&form_name%'
AND client_identifier = '&user_name'
AND sq.sql_id(+) = ses.sql_id;