What do you think???

I recently interviewed and was offered a position as a restorative nurse for a 100 bed facility. After thinking about the offer several days, I decided to take the position. It is a step up to me. I have never done restorative before and they are willing to train someone from outside. It is more $$, flex time which allows me more time with my family. All positive right. Well when I went to tell my DON at the facility I currently work as second shift supervisor, she flipped out! She was upset that I even sent a resume out to another facility and tried to make me feel as if it was a poor choice to take a restorative position. Made comments that it was a waste of my time. Even hit me with the "why go to another nursing home, you should want to go to a hospital" line. I hate that statement when anyone says it but a DON!!!! Even had the administrator tell me that the facility I was going to won't give raises b/c they are not at full census. Any way, I took the position. I wanted to stay on and work both for a while as long as I can if they allowed me to come in 1/2 hour late. (facilities are 15 minutes apart) the ADON is ALWAYS there until 8pm or 9pm EVERY NIGHT. I thought to my self WOW when the administrator told the DON no, she wouldn't approve me to come in late. The other idea was to split the fulltime position with one of the weekend supervisors that was willing to pick up 3 days and I work the other 2. To this the administrator also said no, she wants consistancy on the shift. I understand that but the other supervisor works the second shift on the weekends! the days I'm off. I have never been late since I have been there. I am the only supervisor that HAS NEVER CALLED OFF,and 2 have only been there 3 months! I guess my question is am I being selfish or are they just being unreasonable???