Many airlines will allow you to cancel your flight, and hold the price of the ticket for future use, as long as you fly somewhere with them within 1 year. There usually is a fee. Last time I had to do that, I believe it cost me $50, and that was 3 or 4 years ago.

If you can not do that, then rebook the flight to visit family or take your daughter somewhere fun (just the two of you.) By no means, go to see him in July, as you already know it won't be a fun time for your daughter.

The right thing to do is just as the other poster mention, drop him like "yesterday" and let him know that it just isn't working out. Don't worry about what he is going to do with his is ticket he purchased, that is his problem to deal with.

Breaking up in person while nice, just isn't practical for you when he lives so far away. You need to have a clean break now, not 2 months from now.

Call him or email him and by all means return the ring. I am sorry this relationship doesn't look like it was meant to be.

Then, take some time to heal from this.