<human>: Can you summarize the given text in a few sentences?

This is the post I'm talking about.

There's a further problem to that.

Since the begining of this year, I keep feeling as if he's lying to me all the time. Always coming up with lame excuses not to come in the park. We met twice in January and once last week and that's all this year.

It went down like this: I call him, but his mother answers and tells me he went out in the park with his grandpa and 2 friends. He didn't call me to come out as well, so I go to our usual park(which is quite close), and there he is, with 2 friends like his mother told me. I asked him why he didn't tell me to come out as well considering we haven't met in person since January.

He told me his phone is broken, which is the most obvious lie he's ever told me, because literally 5 minutes ago I had talked with his mom.....on HIS phone. Clearly not broken.

So as I said in that post, I wanted to get that girl's number at his birthday. Problem is, if my friend doesn't wanna hang out anymore  or his parents aren't letting him anymore or something(which are my theories), then surely he's gonna come up with an excuse so I don't go to his birthday, I bet.

So I need an alternative way of getting that number, other than his birthday, cause after so many months of obvious lying, I can't base the whole thing on the assumptions that I'll be invited. How else can I get that number? Going in the park I met that girl over and over again till she's there doesn't seem practical.
<bot>: I feel like my friend always comes up with excuses so we don't meet, so he may come up with a lie excuse for his birthday too. If this happends, how can I get that girl's number?