SUBREDDIT: r/relationships
TITLE: Scared that I [25F] am falling out of love with my BF [26M] of 6 months.
POST: I've been with my boyfriend for ~6 months, it is the first time I have been in love, and I'm terrified that I'm falling out of love with him. I love him, I want to spend time with him, I never avoid his calls or texts, we have regular sex, I just feel like for the past week or so I haven't been getting the same butterflies that I usually do.

This might all sound very stupid and overreacting, but we're a very affectionate couple, and I just feel horrible and guilty the past week when he's been telling me he loves me or that he misses me, because I haven't felt the same way. I'm so scared of falling out of love with him, because I don't want to. The longer this 'lack of butterflies' goes on, the more scared I'm getting. I know the honeymoon period can't last forever, but I feel like this is more than that.
TL;DR: 
Feel like my boyfriend is more in love with me than I am with him - I might even be falling out of love, but I really don't want to be. Advice/reassurance?