What to do when you're in a couple?

i have been with my gf for 2 months, we both love each other a lot. But i'm quite unsure about somethings. We had a couple of discussions but we always make up. But what worries me is that maybe she is startin to get bored. b4, she used to say she loved me more each time i said i love you, but now she says me too or ok. im not sure about how we're going rite now. But i would like to know wat can i do with her so we dont lose that spark. thanks