Jealousy is usually linked to fear of not enough time, lack of being appealing or boring... NRE plays a huge roll. You can find out what it going on by asking if any of these questions are valid for her. Jealousy is completely normal and part of relationship dynamics. Especially in poly. Communication between the trhee of you will be very important as a result. Especially as the dynamic shifts. You have moved your girlfriend in under the influence on NRE I would imagine. I would wonder if there has been any talk of what might happen if this all doesn't work out after things settle into the daily grind more?
I would suggest doing a search on here for "NRE" "triads" "jealousy" and anything else that you find interesting... "foundations" "lessons" All good tag results with those...
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