Is it normal that i want to push internet friends away?

Hi, I join a site and at first it's intriguing and I enjoy the unfamiliarity. Then I feel like I'm bonding with a few people, not in a big way but enough to make me see them as an internet "friend" and I look out for them and like reading their comments. Then I feel my presence is becoming too known even if I'm not that known on the site. I start to withdraw from the site and by doing this feel I am gathering myself together and feel more whole again.

The feeling of the forum that at first was warm and exciting now makes me feel like I'm being pulled apart and sapped. I have a stable relationship, but no friends, so I enjoy forums for socialising. Irl, the feeling of being pulled apart and drained of energy in social situations is much worse but I have no need for friends anyway and my time is taken up by work and interests that I love and being with my partner. I know it's hard to understand but I've never needed friends and never felt lonely even though I used to mainly spend free time alone. So, does anyone else experience this needing to withdraw and feeling too much involved that they need to regroup. I also have borderline personality disorder and do not have a "real" personality with anyone other than my partner, I have a pleasant persona with others though, but it doesn't feel like the real me. You might know who I am, but fuck it.