Say this
- Speak only for yourself. Start with I, not you.
- Name what you want, not what is wrong. "I want us to be better than this."
- Ask directly. "Will you come with me?" A clear question is easier to answer than a hint.
- Give the fact that it is one weekend, not a commitment to years of anything.
- Say that you are willing to go even if nothing is guaranteed.
- Offer to handle the details yourself: the registration, the calendar, the arrangements at home.