私はあなたの事が好きです。（コレはわかります）
ホントは言おうか迷ったの。あなたはシェアメイトで一緒に住んでるから、気まずくなるんじゃないかとおもって。でも気持ちばかり大きくなっていくので決心しました。

Honestly, It was very tough to decide if I should tell you how I felt for you or not.Because, you were my roommate and I was afraid that I would ruin our relationships.But the feelings for you were getting bigger and finally I decided to tell you what was going on in my mind. It’s ok if the answer is no. You can just let me be honest. I am ready to be refused by you. I will just appreciate you for having been nice to me. Thank you very much.
　

To be honest, I have been thinking about whether I tell you my feelings for a while. Since you are my roommate and we live together, I’ve been thinking we might be in trouble if you deny me. But my feeling got to be ahead of my thoughts and I didn’t want to make this even harder. 　

It was tough for me to decide whether I’d tell you this or not, actually...since we are roommates you know, and I didn’t really wanna make it complicated... (pause)
But I think I can’t control my feelings for you anymore, so I
just made up my mind.

なんてどうかな・・・　ごめんねネイティブに聞いたほうがいいかもね笑
でも、自分の言葉でめちゃくちゃでもいいから伝えたほうが気持ちが
伝わるんじゃないかな？？　準備した言葉よりうれしいよきっと。
がんばってね（ていうか、告白するのか分からないけど！）