how in Arabic and the heart has melted
Wal galb aho dab write in Arabic please

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و القلب أهو داب

Please note this is not the Standard Arabic, what I wrote is a dialect.

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هذه اللهجة المصرية و ليست اللغة العربية الفصحى 
بالعربية نقول : ذاب القلب

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ذاب القلب  =  The heart has melted 
يذوب القلب   = yadoobu lqalbu  =  The heart melts

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و القلب أهو داب

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" Wal galb aho dab " والجلب اهو داب "
What I translated to called "See'de dialect" It's exist in Egypt :)
because you wrote " wal Galb NOT wal Qalb "

" wal qalb aho dab والقلب أهو داب "  in case of you meant this.
Hope you got it :)
Good luck.