Hello, thank you for your question.
Firstly, let me just make it clear to you that once the police are involved, it is up to them/ the CPS whether to prosecute, not your partner. Often people have this idea that a victim can "drop the charges" that is something often said on television and is an Americanism. In the UK even if the victim explicitly tells the Police they do not want to have the other person prosecuted and they will not assist with the Police investigations, the Police/ CPS may proceed with it. In deciding whether to proceed they have to consider whether there is enough evidence to get a conviction and they also must consider whether it is in the public interest to proceed. If the victim is uncooperative then that may be a factor in the public interest test, and indeed the evidential test to some extent.
In terms of your main question about bail. The bail is against you; not your partner. You are prevented from doing anything you are prevented from doing in the bail conditions. Generally speaking, your partner has no restriction on their ability to contact you.
However, as the restriction is on you then it is you that must avoid the contact. Often when the Courts impose bail the judge warns someone on bail if the other person contacts you then you must ignore them; if you see them on the street you must walk the other way. This is vital. If you breach bail then you can end up in a prison cell, sometimes for months whilst awaiting the outcome of a case. If your partner calls you; ignore it. If they text you; do not reply. If you get lots of contact from your partner; tell the Police and explain that you have not replied but you are worried that they are contacting you.
Also bear in mind that generally speaking bail conditions exclude contact via a third party so even getting a friend to relay messages might be a breach of bail. If in doubt, speak to the Police.
More importantly; you will need a solicitor and you will likely be entitled to one for free under the legal aid scheme depending on how far your case has progressed. You may already have one, if so these sorts of queries should be raised with them. If you do not have one then you can find one here: https://solicitors.lawsociety.org.uk.
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