Search Results: he only shows up when he has no girlfriend

My boyfriend and I were sitting next to each other with our phones and a message popped up on mine from a group of girls that were trying to organise a hiking trip. My guy asked casually who I was chatting to and so I told him, he wasn't controlling or anything just curious cause the phone kept going off every few seconds

I said to him out of curiosity just because I'm nosey lol - Who was the last person you messaged with other than me?

He said Melissa. (Melissa is an ex girlfriend who he was only with for 2 months about 2 years ago. They stayed friends since then as she had supported him with some personal issues he was having back then, so I can understand why he has kept a friendship with this particular ex.)

They never meet up physically and only message each other every now and then. He showed me because he must have sensed that I was feeling a little uneasy. I could see they only message each other a few times every few weeks and their is absolutely no flirting going on. She knows about me and he has asked her to come over with her kids for a BBQ and to meet me so there are no secrets floating about.

When he said he last messaged Melissa I casually asked how she was, he said she is okay, going through a little bit of a hard time and he passed me the phone and said to read the messages so I did. She drives trucks for a job and there were messages about how she had recently had a truck accident and was out of a job, feeling a little depressed and now has to go to court for it. He messaged to her that there may be an opening for a truck driver job at his work and that he would try and help her get in at his work.

I did ask him if why he felt he needed to help her and he said she is a friend, I'm just being nice. I asked if he still had any feelings for her and he said NO and then I asked if she got a job there they would be seeing each other every day at work, is there a risk of them becoming close again, he said NO. Should I be worried