Long term relationship struggles

Is it normal to not feel as much sexual chemistry in a long term relationship?been together 4 years and I don’t get that feeing anymore when we make out and never want to have sex even after foreplay etc.. I just go along with it to make him happy which I feel so bad about. I love him so so much I just feel like that spark is missing now.

You need to figure out where and when you lost that feeling... Is it getting boring to you? The same thing same way everytime?? Spice it up if you are willing for example the next time you give him head run your tongue down his balls... See if he likes it... Run your tongue around the outside rim of his ass... Bring in toys if need be... You will be surprised at the response you get if you talk about sex... Let him know what you like and ask what he likes.... Communication is key...