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She tells me that she never intended on getting into anything serious with him. They met, she liked him and it was going to be a one off.
After spending a bit more time with him, she realised that she liked him more than she anticipated in the first place so it's still going on.
What I don't understand on his part is that he spends time with her, it's not *just* sex between them and he's actually pretty sweet to her, but surely he can't be content in his relationship with his current before he's still seeing my pal? Also, wouldn't he just end things with my pal if it was bothering him knowing she wants more than what they have?