It's only been two months? That is barely any time of low contact for an adult friendship (which definitely go in cycles). She is probably exhausted planning the wedding. If she has a problem with you it's ON HER to communicate that, not you to divine that from signs that you admittedly assign too much value too. It is not your job to guess other people's feelings.

Just get out of your own head and go if you actually value the friendship. You'll do more damage by preemptively trying to "end" the friendship on Bella's behalf.