you have nothing to worry about,the fact that you are looking says you have decided it is time to move.it dosn't matter what the reason is for it it is just the right time.yes it is very flattering to have your employer say,but i don't want you to go have some more $$$,if you are worth x dollars to stay you should be on that now.but if personal satisfaction is the reason
then in my books happiness can,t be bought.if you are not happy then you have nothing to feel guilty about