You have three choices:
1. Stay where you are and wait for the call from CX, hope not to be laid off in the meantime. Not a bad option if you are being paid, be sure to stay current, that is your employer's problem and the CX training will bring you back up to speed very quickly.
2. Take the A320 job but when CX give you a start date and should you wish to go to CX then be prepared to pay off your bond and go.
3. Stay with the A320 job.
There are a few on here who will say, "Ignore the bond, do your own thing, bonds are illegal" etc. etc. These sad characters are life's failures and it is they who should be ignored, your decisions and behaviour, particularly in aviation, have a habit of catching you up.