Social Media in relationships

Does anyone else agree that social media makes it so much harder on relationships now a days!? I have been with my fiancé for 6 years and we have 1 year left to go to our big day, but for some reason, I find my self becoming more and more jealous about things I see him do on Facebook. It could be something
​as little as liking a picture of another girl and I immediately get paranoid about why he did it or what it meant.  I feel like a crazy person. Does anyone else feel this way? He has never ever given me a reason not to trust him so why do I feel this way!??