Is it bad??

I've been with my boyfriend for 2 and a half years and I love him with all my heart and I wouldn't change him for the world...but lately I've been feeling abit bored with my relationship and our sex life isn't that fun as it used to be. I do still get butterflies when someone mention his name or when me and my friends are talking about him or when I see him but like I said lately I have been feeling bored is there anyway I could or we could do to spice up our relationship?? 

Please no hate just need advise/help thank you 💕