Granted I'm not the best at advice, is it possible you're getting yourself worked up because this is new territory? You know, like getting excited you have someone close to you, naturally this will make you connect with them more if this is a new charter and you're excited to, maybe, have a really close best friend, and so the happy stage is enhancing your emotions? because if that's the case the tide will calm down and you'll learn to appreciate them as a really close friend, a trusting person.
I say this because recently I've been in the happiest stage of my life with my friend, we constantly put each other above ourselves, and to some people, romantic feelings may seem like they should fit in this situation, however when you realize it's okay to just really appreciate them as a person and now your partner, maybe the feelings you experience will go away. Romanatic feelings were always confusing for me to, so acknowledging not everything has to be in a romantic way gave me relief to just be okay with having a friend who totally gets me, and leaving it as that.
IDK what your situation looks like anymore, because i did notice this was posted quite a time ago, I hope your situation has been cleared up.