I Miss you , a lot .. God bliss you .. or I Miss you so much .. May God protect you . it's not the exact meaning .. but this is what the writer meant .. ~ hope i helped

مشتاق >>> it's the adjective form of the verb يشتاق >>>> the verb " miss " in the present tense . شوق >>> the noun so the writer try to describe his/her exaggerated missing of someone ;) and at the end , it's a God blessing wish :)