<human>: Can you summarize the given text in a few sentences?

I've been dating my boyfriend for a little over a year, and a lot of my values have changed over that year.  In the beginning we had about the same opinions on certain subjects (religion, marijuana, appropriate life styles, etc.).  Though I've changed, he hasn't on most of these topics.

Over the year, I've stopped smoking marijuana, I've now found it unacceptable to smoke (just my personal beliefs), and I've grown stronger in my faith with God.

The biggest thing that's been bothering me in our relationship lately is the marijuana part.  He still continues to smoke, while he knows that I am against it.  Though I don't smoke, it's still something I miss, and something I struggle with.

He's promised me that we will no longer discuss his smoking habits, and he promises me that he'll do whatever he can to stop me from sliding back.  The problem is, even though we don't talk about it, I can still tell when he's been smoking.

It's also caused me to not trust him completely.  I've found myself checking his text messages to see if he's been texting people while he's stoned.  I'm ashamed of this, but I can't help it.  Thinking about him doing weed just makes me sick to my stomach and extremely upset.

I honestly don't know what to do.  I love him so much, but I don't know if I can continue being with someone who doesn't share my values.  I find myself consonantly thinking about the things I don't want to go back to, and I feel that my relationship with God is being held back because he doesn't have the same beliefs as me.

I'm just looking for my constructive advice and how I should talk to him about this.  Anything helps.
<bot>: Our values have drifted apart, he smokes weed, makes me sick to my stomach thinking about it, don't know how to handle it.