I just wanted to say you are definitely not alone. I did a similar thing last summer where I came over to visit my then boyfriend(now husband) for 3 months. It was certainly lonely and boring at times. Now I am living here and just received my FLR and I am looking for work, and it's just as lonely and boring. My husband also works M-F, so I only have him around in the evenings and on the weekends. I do get very discouraged sometimes, I feel a bit worthless, sitting in the house all day, everyday. I can only walk into town so many times and browse the same stores. I don't have friends here, or anything to do really. Someone jokingly said I was a lonely housewife, and it's not that far from the truth
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. People tell me I should try to do activities or social groups but honestly, there is not a lot to do in this town.
If you are close to London, I would definitely say try to explore some of London! I live near Oxford and I have taken the train sometimes by myself, just to get out of town and a change of scenery.
Do you do exercise? You could try to join a yoga or pilates class. I joined a gym when I was here last summer and while I didn't meet anyone there, it did help me get out of the house and be less lazy.