<human>: Give me the gist of the text in a nutshell

my so gets so uncomfortable whenever we broach on the subject of the future. if i even talk about possible future pets he says stuff like "oh let's not get too ahead of ourselves" and if i ever bring up a friend who got married (NOT cause i want to talk about marriage with him, just wanting to share a story about a friend) he immediately finds a reason to end the conversation and head off. I'd be fine with this if we were first dating in the early months or something, but we're at two years now. I have no plans of getting married any time soon but I'd like to hear his opinions at least but he seems so uncomfortable whenever some futuristic grown-up topic might come up. neither of us are really confrontational types, so whenever he cuts it short and i get ticked by the slight rudeness i don't say much and if he really doesn't like the topic he's never bluntly told me that either. can i have some insight please? is it possible that he has zero interest in a possible future with me?
<bot>: we've been seriously dating for a while and we've never discussed any serious issues ie. marriage/ children etc. do i need to be worried?