It's not that wade didn't let her back in it's the fact wade realise Lemon wanted something else and he told her that .
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If your running business together you want a business partner who will stay with you no matter what and Lemon didn't but your right the rammer jammer wouldn't be same without them .
Am i the only one secretly wanting them to fall in love with each other
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Agreed but wouldn't it been cheaper for them if he wasn't in the episode ?