What does this mean? 君を夢中にさせてあげるからね (from Hirai Ken - pop star) この文分かりません。夢中とさせてはどうやって文の中に使うのは分かりません。 (I don't understand this sentence. In particular, I don't get how 夢中 and させて are being used. Thanks for any help!)

今日の天気 今日の天気はとっても美しいだった。 ぼく公園にいった。たくさんな人おった。家族といぬと鳥が全部公園にきた。みなさんは楽しい時間だったと思う。ぼくが歩いてたとおんがく聞いた。四十分ぐらいをした。その後、車で家に帰った。おもしろな日だった。 Today's weather was really pretty so I went to the park. There were so many people there. There were families, dogs and birds that came to the park as well. I think everyone seemed to have a good time. I walked and listened to music. I did this for about 40 minutes. After I was finished, I drove home. It was a really good day.