I don’t want anything serious

So me and this guy have been hangout out for the past two months. When we’re not together we’re planning when we’re seeing each other, talking all day, etc. last night he hits me with “I’m really worried about hurting your feelings and thinking we dont want the same thing. I don’t want anything serious” I appreciate him being honest with me, but he’s giving me mixed signals. Telling me he misses me& likes me, can’t wait to see me, inviting me over, having sex, talking every day etc. I do like him, he’s a really nice guy. I’m just kind of like what do I do now? Like I’m fine with just a genuine thing but I’m not sure why he’s bringing it up all of a sudden.