The spelling of the word "dooling" can be explained through the International Phonetic Alphabet (IPA) as /duːlɪŋ/. The double "o" in "doo" represents the long vowel sound /uː/ while the "l" in "ling" is pronounced as a dark "l" /ɫ/. The "i" in "ling" is pronounced as a short vowel sound /ɪ/. Therefore, "dooling" is spelled with two "o"s because of the long vowel sound and a "ling" at the end to represent the noun or verb derived from "dool".