If you keep on talking about similar topics, both of you will be bored before long. Take interests in many things so you can bring up a variety of topics. It not only makes the relation with your penpal better but increases your knowledge. It's nice to send a snail mail to your e-mail pal for a change. If you have known each other a long time, it's also possible to call your penpal.
Some people go abroad to see their penpals.
If you're tired of writing mails itself, I cannot say anything about it. But if you just get bored with writing to a certain pal, it's time for you to look for new penpals. You can rarely find the very best penpal by writing only one or two persons. Click on the checkbox to narrow down your selection.