I wanna cancel my trip because my friend canceled.

I am still in school and my school was planning a trip to London. Me and my friend applied and were super excitedd about it since I always wanted to visit London and her bf lives near the hotel we would be staying at. She , however, decided to cancel because her bf asked her why she is payi g for everything (transport , hotel, guide, museum tickets etc.) when she could just visit him. I knew that the trip was an opportunity for her to meet up w him and there is nothing wrong w that but I also hoped that we would get to spend some quality time together since we are "besties" according to her. Since anyone in my school was able to apply everyone that got accepted is a stranger to me. I do not know anyone who is supposed to be on that trip. Do I cancel as well? I always wanted to visit London w my friend and this seemed like an opportunity but it could be done later for cheaper (if we go on our own when school finishes).

I dont know what to do.

Edit: Thank you all so much for the advice and reassuring me to go. The trip is from 1.5 - 4.5 and from what Ive been told we are staying in Central London only a few mins away from the British museum. Also I love how some of u are hating on my bestie 😭. Really made me giggle (obviously I love her and wouldent want anything bad to happen but yalls comments cracked me up). Also for some context. I am 18 in my last year of highschool. The money for the trip I saved up over the past few months by working at maccies during the school breaks. Thank you all again and I will deffo update once the trip happenes.