What does it mean if a guy shows you pictures of his ex. Does that mean he sees you only as a friend?

I have been dating a guy for about 6 weeks, we see each other almost every weekend. The other night we were working on his computer and he started to show me some pictures which included pictures of an ex. He said he hadn't deleted them but he wanted to. I got a little jealous because they looked happy together and I wouldn't mind having something like that with him. It was uncomfortable.

The next day I told him how I felt over text but he did not address it. I wasn't accepting him to answer back I was just sharing how it made me feel.

Does it mean we have no future ... if he is showing me pics of his ex. ?
What does it mean if a guy shows you pictures of his ex. Does that mean he sees you only as a friend?
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