Am I being cheated on?

I’m in a relationship with a guy for 2 years, but we go back longer than that – friends for 6years.

I found that his letters/bills has his ex address on them – he told me that he uses her address due to some issues with his residence card (he used her address for the residence application) she agreed to this set-up because when they broke up 5 years ago – she used his address for 2 years when apartment hunting herself.

He hid this whole address ordeal from me and when questioned about it he started saying stuff that dosent add upp. I told him this situation is unacceptable and I feel lied to. I want the truth from him.

He told me bad stuff about his ex – party girl, cheater, blah blah.

I also found out they are texting on a weekly basis – it’s her asking about work related stuff – looks like they are doing favours for each other or could it be more than that?

I’m upset for a couple of reasons – I live in the same house as him.

He never tells me when or where they meet – All I know is that he needs to pick up the letters every month ( lbasically its just a non critical internet bill) and I know he can get it sent to his email but he says it’s just an address and he can’t change it – too much hassle with the residence card.

He also told me I can’t collect the letters myself or come with him.

At this point, I assume he keeps me a secret from her. He said I can go-ahead and contact her but then took it back and said that would be to embarrassing. In a way I want to confront her too?

According to him I’m just insecure and jealous, plus she has a boyfriend. Again, I trust none of the things he is saying at this point.

We had huge fights because of this – he used the b word and tried to blame shift.

I want to leave him – I stopped all intimacy with him – he’s not very affectionate either way – he’s clearly stuck on her years later – emotionally unavailable. He strongly denies anything is going on – “just an address”

How can this be?