We're probably all a little weird here but in a good way. I'm sorry you're going through all of this I think anyone in your situation would feel the same way, it sucks there isn't a switch to just turn off the love for someone but it just takes time. Try to take this time to focus on what makes you happy (hobbies, music, self-soothing distractions) and try to take your focus off of him whenever you are able to. There are some good threads here to distract and just general chat with others here helps to keep your mind busy.

Once I used this app called Mend which was super helpful when I was trying to get my mind off of someone and it's a free app.