でんわではなしましょうね！ Let's talk on the phone, okay? いつも、わたしはミウさんがきらいじゃないよ。 I would never hate you! (Literally, "I will always not hate you")

For your first sentence, you could probably say something like 「後で電話をしましょう」(let's talk on the phone later) or 「後で電話をしますよ」(I'll call you later). I'm having a bit of trouble telling what you want to say in the second sentence. I'll give it a shot, though. You could say 「あなたのことが嫌いじゃないよ」(I don't hate you), I think.