Big guy problems. Does it get easier? Dx

So me and my bf have been dating only two months and a half. Let's just say he's very well endowed. Anyway the first couple of weeks I felt I couldn't handle him but after a while I felt he'd stretched me out enough and it didn't feel so dangerous. It got to a point where we were having sex sometimes 7 times a day and I wouldn't be painfully sore, I'd be fine. (Keep in mind we just started dating and I only see him on weekends) Anyway I really started having problems I think around the time I got a yeast infection. It's been healed for like 3 weeks now but I get horribly sore so easily. We can only do it like 2 or 3 times a day now. Best sex I've ever had but I also can't get as easily wet with him. We always need lube. He also doesn't last crazy long. Maybe just 10 to 15 minutes sometimes less but I'm in pain! Does this get easier?