Valmiki Ramayana Sundara Kanda Sarga 39 Shloka 23
Original Shlokaतवादर्शनजः शोको भूयो मां परितापयेत्। दुःखाद्धुःखपरामृष्टां दीपयन्निव वानर।।5.39.23।।
1 source checked for this shloka
वानर vanara, दुःखात् agonised, दुःखपरामृष्टाम् agony increased further, माम् me, तव your, अदर्शनजः not seeing you, शोकः sorrow, दीपयन्निव as if inflamming my agony, भूयः again, परितापयेत् it will trouble me.
"My agony would be increased further by not seeing you. It would be inflamming my agony and I would be even more pained.