Catchin the feels

Sydney • Baby dust come at me
Right so I couldn't think of a better place to put this. 
My current, "bed warmer" as my mother would say, is a 27yr old man, I am 20, who has a 10month old little boy. Which is perfectly ok with me. I love kids. My problem tho is he sends these gorgeously sweet msgs that go from being flirty and fun to being cute and sweet and just heart melting, it's not just over text that he does this. He will do it while we are in bed too, goes from being "you are so f-cking sexy I want to be deep inside you" type stuff to being "you are so beautiful, so nice I just like having you here" 
I can't help but fall for him because of this. I don't know how to approach the subject with him about what we are and where we are going with the "relationship" 
I don't know if I'm writing this to ask for help or just trying to get it all out of my mind and stuff but hey suggestions / stories from ladies that have been in the same sort of place would be great. 
I've attached a pic of a small part of the convo we had earlier tonight and what turned my insides into mush it doesn't seem like much but to me it's so much.