Now strange at all! Oh, I'm probably one of the few, older RPers on this site who can truly say it's more like a blessing than strange. I've been RPing for about 15 years, ghostwriting longer than that - which lead me towards RPing for character building in the first place.
Within that time, I've become 'Play Mama' to many of my younger RP friends, and 'Big Sister' to those around my age. From out of that bit, I've personally met eight of them, flew overseas twice for two weddings, went to three graduations, and was a witness to one video birth of my new RP Godson - who's now a big brother to my new RP Goddaughter born last month.
I even traveled across the states to stay the weekend with one of my oldest RP buddies (now co-author of three books we've started through RPing). I stayed for an editing meeting with our new editor, went to Disney World, and stayed with them at the hospital when they had a really horrible reaction to a wasp sting.
They're my writing family now. I work for many of them as their ghostwriter on stories inspired by their RPs I've participated in. After so long, RP pal or pen pal, becomes an online best friend, to a new family-friend, in some cases. When writers share so much of themselves within the characters they portray - or even share their RL personal problems or blessings, after a while you can tell who is truly an honest person. It takes a long while though when it starts online, but I would never change the fact that I've met some of the most amazing, awesome, people through sharing and growing together within a similar hobby. Always stay safe, but always be real.