Relationship advice is greatly needed!?

so i started dating this girl about 2 and a half months ago and i was blown away by this girl!! sooo twitterpated, and falling crazy in love, just basically she deff captivated me and impressed me. well that "honeymoon/twitterpated" phaseis over now and im feeling really bored with it, we argue now and we never did, we fight occasionaly now and yeah, im not feeling that "spark" like i once felt at the begining of this whole thing. do i just need to wait this out? i feel like this is totally normal and if we get through this rough/rocky part then i will be in love and yeah. i feel like this is the point in a relationship where people cheat and **** up a potential relationship because the honeymoon is over and reality kicks in. also, i am a virgo and i very much believe in horoscopes with relationships so if anyone else is a virgo who answers this tell me if they go through this also when starting relationships.