So me and my boyfriend have been dating for almost 3 years. We argue a little, but the arguments are about dumb stuff. But the only thing he says to try and make it better is "i love you". And sometimes I want to tell him " that doesnt fix everything"
Anyway, we had a falling out and we're trying to patch things back up. And I recentley told him he isn't giving me any attention. And I have to admit I love the puppy love and the random texts saying I love you; but I don't know what to do to get him to be more romantic with me.

Tell him flat out that you would like him to be more romantic. Or you could initiate romantic activities and dates and such, then mention that you really like doing romantic things and suggest he come up with some ideas.

How old is he?

While making out maybe try to be the one to pull out once in a while. Don't be all over him, he will think he's in control and has to do nothing in order to keep you because your not going anywhere. You have to make him want it, move back a little and let him come to you. Distance brings people closer, make him want you then he'll do those things without thinking about it. Don't tell him oh you got to be more romantic because then your giving him a job and guys don't like things being planned, they want to be a little spontaneous, and if you do tell him then when he does romantic things then you'll know its only because you asked. So take my advice and give some space and just make a sexy face while making out and bug him a little by dodging some kisses.