Would you end your relationship over this?

[themare]

If you found out that your husband had downloaded a Tinder account and had messaged a number of different women on a number of different dates asking to meet up? He has said I am overreacting because he did not really meet up with anyone and he only did it because he has been feeling lonely and feels that I am a million miles away.

I can't believe you even have to ask this question

You can file for a cheap divorce online (under £500) and get the paperwork done and submitted to the court. Doing something will make you feel better. Start looking at finance, jobs, etc so that you can end it.