Close, but no cigar. The one who is going to come between them is another creature with an agenda all her own.
True - and that is often the fate of exes in this type of scenario, esp if it happens right after the secretive hero meets an intriguing female who knows a bit more about his abnormal activities. Within a few eps, he gets dumped by his true love, and she gets tragically mauled. New, edgier girl helps wipe the tears, pick up the pieces, and the next you thing know, he's got a will they/won't they girlfriend to replace his lovely, nice, but voted Most Likely Unable to Deal steady.
There is an interview with Bitsie Tulloch (Juliette) on Blastr which I refuse to read since I hate spoilers, but it likely addresses the points I'll make. Either Nick needs to tell her his secret in the next episode, or she needs to start asking some hard questions. The first should be why there are mysterious people out to get him (and her), and the second should be why it was Monroe with him at the tunnel instead of Hank.