I've been dating my girlfriend for around almost 16 months, so it's pretty serious. For the first 8 months or so, she didn't ever mind when I went out for a run everyday, occasionally 2 (80-90 miles a week typically). I had a bad injury that kept me out of running for around 6 months and I just got back to training around a month ago. I'm very slowly ramping my mileage, so last week I did about 35 miles and this week I'll hit around 40, ie, less than half of what I was doing before. All of a sudden though, my girlfriend (not a runner beyond just a hobbyjogger) starts complaining that I'm not spending anytime with her, all I care about is running, and I need to either cut "waaaaay back" or let her come along with me. Now, I'm not that fast (mid-16s 5k, 2:50 marathon), but the bottom line is that I'm not that gifted of a runner naturally and I've had to work really hard over several years just to get to where I am now. If I start running 20 miles a week or running with her, I'm never even going to get back to where I was at 7 months ago, much less improve on that. I'm not training all that hard yet, but there's not a chance she can hang with me on even my shortest and easiest of runs. I've offered to do a second run so she can run with me, but apparently that's not good enough for her. How do I nicely tell her that she is not fast enough to run with me and that I need to run by myself to actually be able to improve? I went for literally a 52 minute run right from work with a buddy of mine today and she flipped out on me for running with him instead of her and now is refusing to talk to me tonight. Is there any reasoning with her? In case you're wondering, this is sadly not a troll. This is a very serious and bad situation that I'm stuck in.