My colleague made a public post on my personal facebook wall?

[aeddie]

I am an apprentice, which makes me the general dogsbody in the office where I work (I do PR). However, in the six months I have worked there I have never had an unauthorized absence or been off sick at all.

A few people in the office have been off with stomach bugs lately, and on these occasions they simply told one colleague who passed it on to everyone else.

Today, was my turn to be sick (and boy was I sick) so I told the colleague I usually carpool with that I wouldn't be in and to let everyone else know.

11pm at night, one of my colleagues (not line manager or boss but obviously "higher" because I'm just an apprentice) posted the following message on my private facebook wall- PUBLICALLY so that all of my "friends" can see it:

"See you've had a nice relaxing sick day! Would be appreciated if you could let us know direct in future you weren't able to make it in...." I don't think it's okay for her to contact me in this way- I'm in the office 5 days a week which is enough time for her to say what she needs to to me. She also commented with:

"Not cool. If you're sick, you need to let someone in the office know. Not just let *other colleague* be your messenger. Hopefully see you tomorrow." Tagging the other colleague in the post making it even more public.

I'm pretty sure this isn't okay and I feel quite humiliated and angry- what are the correct steps to take without damaging our work relationship?

NOTE: I know you'll say not to "friend" colleagues but in this role it is necessary as we do Marketing and have to link our accounts to another page we moderate in one aspect of this)
She has since removed it without further comment, and I spoke to my boss this morning who is fine with me being off, phonecall or no, as this is usually how people iin my office usually conduct themselves when taking a sick day.