You could try making a little oatmeal in the microwave and adding the meds to it and feed by spoon. I give mjy grey some every morning and she loves it, if I ever have to give her meds thats the way I will give it too her.
I wouldn't worry right now about the bonding with you, you have plenty of time to gain that later, might take longer since you had to start off on the wrong foot so to speak but it will happen, just remember it takes time and much patience.