What if my girlfriend's ex-boyfriend keeps contacting her?

Be tolerant. Remember, it's not connivance because I can't forget my ex-boyfriend, and he always sends me messages, just now, and they are always seen by my current boyfriend. He is also angry, but more tolerant, I will feel guilty, I will be sorry for him now, and I will love him more. If you choose to be angry and lose your temper, then she will be sad and think that you are not as good as him, which may be self-defeating. Remember, she is yours now, hehe.