My work colleague who I spend 40 hours in an office with comes home and wants to text me all night and talk about work and other irrelevant stuff. I'm really getting irritated by it now I really didn't want her to have my number in the first place but she asked multiple times I felt awkward saying no. She is almost double my age. It's very odd and people who I've mentioned it to say it's creepy. She isn't like this with anyone else at work there's many other people she could try and befriend if she really wants, she's been here a few years now. I've done nothing to encourage this I like to keep work and private life totally separate and don't like texting at the best of times. Many times I've ignored messages but it makes me feel rude and makes no difference anyway because I still get them every night. Even weekends sometimes. AIBU to be really pissed off about it and WWYD?