Not that what the rules actually say matters to anyone here, but you can read the text for yourself (the article even links to them):
"A foreigner married to a resident of the Area, or forming a
couple with one, must proceed to make arrangements
according to Part 4 of this procedure before arriving at the
Area. If the relationship starts after the foreigner arrived
at the Area, then the authorized COGAT official must be
informed in writing (at a special e-mail address) within 30
days of the relationship's start. At the same time, an
application must be submitted to the Palestinian Authority
for formalizing the status in accordance with Part 4 of this
procedure. For the purpose, the "starting date of the
relationship" shall be considered the day of the
engagement ceremony, of the wedding, or of the start of
cohabitation – whichever occurs first."
"Under this procedure, entry and resident permits for the
Area are divided into various categories. Permits under
Part 2 of this procedure are intended for a short visit in
the Area, lasting no more than three months, whereas
permits under Part 3 of the procedure are resident
permits issued for various specific purposes in
accordance with the provisions of this section. Part 4 of
this procedure refers to applications for formalizing status
in the Area and to the possibility of receiving permits for
foreign spouses of the Area's residents to reside together
with their Palestinian spouses (i.e. spousal permits) when
an application that the foreign spouse's status be
formalized has been submitted by the Palestinian
Authority but rejected."
In short, if you become engaged, married, or cohabiting, then yes you may not qualify anymore for the visa you entered under (and need a different permit), and have to report that within 30 days.