It's not about your willingness or someones trust in the partnership, but giving it a proper shape in the form of partnership deed. If revenue or profit isn't something that you intend to share with your partner then be prepared to compensate them in some other form.

More insight could be provided after knowing the kind of partnership you're seeking, roles and responsibilities of either party, point of mutual benefits, utilization of mutual IP et al. Feel free to DM or patch me in a call to be able to share above points.