How Do I Know If I Can Trust Him?

This question is from a Group Therapy post in our community. Add your advice in the comments!

I've been with someone for about six months now, and things have been going well. He's affectionate, caring, and respectful. The thing is, I get nervous when he starts talking about the future. Our future. He talks of how he's never felt this way before and marriage and so on. Which all sounds great, but I've been with men in the past who have said the exact same lines, only to find out that those lines were empty and meaningless. So I'm definitely jaded. Should I take what my current BF says with a grain of salt? How do I know when someone actually means what they say?

Have a dilemma of your own? Post it anonymously in Group Therapy for advice.