Re: How can u be sure...?
Also - I hate to be the bearer of bad news, but this IS reality.
Life is not an eternal 'honeymoon' phase.
There ARE things that people prefer not to discuss because it is; too stress, too time consuming, too difficult to talk about, not what they think is important etc etc.
If something is important to you and you want to discuss it - first of all, don't broach the subject via a text. Physically talk to him.
Including this very subject. You should be upfront and tell him that you feel as though there is a distance between you two and that you would like to discuss it.
Unfortunately, life isn't a bollywood movie with overflowing romance all the time. :(
I would suggest having a chat with him about what you're feeling. That would be the best and most direct method of deciding for yourself if what you're feeling is correct and if you're interpreting his action correctly or not.