I Need Ladies Ideas!

Let me begin with a little background. I have been in a relationship for 15 months now. I know it's not long. In the beginning, everything was wonderful! I mean we went out together, we did things together and everything was spectacular. It was down to the point to where we cared so deeply about one another that we couldn't even yell at each other. It was like that for about 7 months...then we had problems and separated for about a month due to drama and rumors...(which I regret now) We've been together since then. We decided to leave it in the past as if it never happened. That was great. Well things built back up to the way they were and we were the perfect couple. Now, it seems as if the thrill is gone. It seems as if he doesn't care as much and he doesn't put effort into anything anymore. So due to that, I tried to keep putting effort for both of us to make it work. I have tried talking to him, doing it all myself, getting the point across in every way possible to let him know we really don't seem to be getting anywhere. I know many people say " remember what you fell in love with him for ".....but he's a far different person than that back then. Do any of y'all ladies have any ideas how to put the thrill and spark back into the love????? How to keep things strong and interesting, kinda like I described before???? PLEASE, NO RUDE COMMENTS IF YOU DON'T MIND. I AM ASKING FOR SUGGESTIONS, NOT RUDENESS. THANK YOU.

PS. ANY IDEAS OR THOUGHTS WOULD BE GREATLY APPRECIATED!