できてうれしい

glad that ... happened

→ 出来る
phrase Uncommon #16,726
glad that ... happened A compositional expression meaning that the speaker is happy or glad about something that was possible or came about. The exact translation depends on the preceding verb or noun, such as “glad to be able to meet again” or “happy to make a friend.”
JA: 一緒に旅行できてうれしいです。
EN: I'm glad we were able to travel together.

また友達ができてうれしい

I'm happy to have made another friend.

— ネバーエンディング・ストーリー (1984)

あなたに再会できてうれしい

I'm happy to see you again.

僕だって彼女を恋人できてうれしいんだ

I’m happy that she’s my girlfriend, too.