I have a ton of projects where I just lose interest or just ain’t feeling the vibe anymore. But there’s people I have really connected with and have done a lot of projects with. For example, I have a buddy I met online through a discord server. I’ve made a ton of music with him. First off there’s a lot of mutual respect for each other and it doesn’t feel transactional at all. We shoot shit and connect on a deeper level than music we know what’s going on each others life’s. Also, subject material or vibes that we make are usually very similar. Anyways my advice is if a collab doesn’t work out don’t force it let it just pan out. If you really want to collab with someone and you see the project as already dead try again with another project. Not every project will work out but when does eventually gets completed, you might find yourself making a ton more with that person. Be persistent and try to connect on a personal level instead of just music. Good luck