I don't think it's a big deal to send a twitter link to someone. But why not talk to him about it and explore issues surrounding this urge instead of sending it?

Tell him next session how you wanted to send him a Twitter link then discuss your feelings about it such as why-do you want to open up to him? Do you want to share of yourself-intimacy? Do you want to be connected to him? Do you want to test him? Are you self-sabotaging? Just common reasons. I see you want to give him ideas inside your mind-why? That is really good subject material for therapy-you can talk about that alone for an hour!

Since this has been an issue for you-

Texting/emailing/calling people too much, when out of context with the relationship pushes them away. That's why i suggest talking with him about it so you can work on issues.

Or you could start that route again and work on it as it comes up. It just seems like your putting yourself through pain and rejection that way. All the kind of stuff some of us are in therapy for, right?