Losing friends after marriage.

This seems a little strange to me, but lately I've noticed most of my friends seem distant. One of them even took the time to call me weeks before my wedding to try and talk me out of it. Her reason' he could be like her ex'. Seems loving but he's not' she told me. She  spent hours on the phone telling me just how bad her relationship was. And that I should definitely reconsider getting married. 
Another made a joke about how small my  wedding was. I feel like they're not genuinely happy for me. It's like most of them are just waiting for my marriage to fail so they can laugh and say I told you so. Funny thing is we are all 29-32. I'm confused.😳what do you think? 
Thank you for all your comments. It really helped . I was starting to think I was just being paranoid. It sucks but yes I will definitely be better off without them .