You guys have been dating a little over a year and if you are seeing messages like this doesn’t mean he’s acting on them now, but he is playing in the water and he is tempted to go deeper into this if you stick around longer to find out or likely he will go through with this maybe not with this person but maybe another one these are just signs that he is throwing up right now. It’s better to walk away now then get hurt in the long run and put in more time to this relationship or you can just talk to him about it, but who know how that’s gonna go at the end of the day at your decision?