conjugal e-mail address

An e-mail address shared by a couple (married or not) who likes to apply their "coupleness" to everything.

In many cases, the e-mail address was originally the guy's but when "couple status" was attained, the girl claimed co-ownership of the guy’s e-mail address. Sometimes this may be a case of the girl (or guy) being territorial. Sometimes this may even be a case of the girl (or guy) going loony as she (/he) thinks that she (/he) is the other person as evidenced by her (/his) eagerness in replying to all e-mails addressed to the original owner of the e-mail address.